Why not both? No bad Alex, do not say that when you would not in fact enjoy doing both at once.

"Sex first and we relax afterwards with cake?"

"Yay~!"

She kisses him, then moves to place the cake box in a convenient location for later.

"-Oh, I should make sure it's absolutely clear. Um, I kind of have sex with a LOT of people? Because, you know, succubus. I don't want to hurt you with mismatched expectations. Also, I don't feel penis-having-y today."

Alex giggles at her adorableness and returns kisses.

"I would've been more surprised if you weren't? Because you know, succbus and also kind of worried because being someone's only source of sex would be a concerning amount of responsibility I'd rather not have, if that make sense? Also completely on not feeling like having a penis today!"

A part of Alex is slightly disappointed that she doesn't have a penis today, but pressuring anyone about sex stuff is bad, so he won't mention it.

"I'd rather save my penisy feelings for when I can-" She darts forward and puts a hand on his neck, whispering in his ear suddenly, "Fuck you properly. So for now... Just tell me what to do, summoner."

Has Myra ever heard the vocal equivalent of keysmashing? That's basically Alex's reaction to moan to what she just did, followed after a few seconds by moaning out, "I'dlikeitifyourodemycock!"

That can certainly be arranged. Eagerly and passionately.

In a lull in the fun, Myra says, "I wonder if you would benefit from meditation or magic generating exercises. I only know what I've heard in passing, though."

Snuggles during the lull! "What stuff have you heard in passing? I'd be happy to try any of it if it might help me generate more mana to give you."

"I've heard that focusing on and reveling on strong emotions helps generate magic. Strong desires. But you also need a clear goal for the magic. Something direct and immediate you're directing it to. Many witches do mindfulness and imagination exercises. Later on, when they're older, they often stop appearing in public so much, and they shift away from 'teenage angst' and 'childlike wonder' and 'power of will' to... Other types of emotions to help create magic. Like pride, anger, or lust."

"Huh, so would trying to focus on how I'd want to generate the extra magic to give to you so you can magic my face prettier (and after you actually do the change, the focus to be on my how you'd change my shoulders next, and then after that whichever transformation is next) and so we can have sex for longer, and how hot those both are, be the right kind of thing to try and generate extra magic with, or"?

"Yeah! It's just I'm not sure how to, uh, measure if it's working? I can get a precise feel for how much I suck from you, but that's not the same thing as how much you're generating at the moment."

"Hmm, If you wouldn't know anyone who could measure it more precisely if asked or bribed into doing, we could try going a few weeks without me trying any exercises and having you write down how much precisely you sucked from me each day or maybe after each orgasm, and then I could try doing some magic increasing exercises each day and after a few weeks of that do some statistical analysis to check if they might be having an effect? though that would be a pretty slow way of checking, though I admittedly wouldn't know much statistical analysis so I wouldn't be able to tell the difference between it having a small effect or no effect either."

"If it's a big difference it might be obvious. If it's a little difference it might not be worth bothering with. I do have some witch friends but they can be a little sketchy... Maybe I should get that essence stone..."

"Would they be the fun or the possibly dangerous kinds of sketchy? And please don't feel obligated to get the essence stone on my behalf, though I am curious how it might help, would it let you how much magic i can output without needing to make me cum at the same time?"

"The possibly dangerous kind. I can tell you more, it's just... It might go better for you if anything happens if you don't know more specifics than 'a succubus was fucking me and paying for the essence with transformation services'. Not that I expect anything to happen."

Alex hugs her tighter.

"O-okay I won't ask for details if it might things go better if I don't know," I trust you "and um please don't do anything that'd be dangerous for you on my behalf?"

"I'm sorry. And I won't."

"Don't be, and thank you."

Would more hugs help? Alex is going to hug her for a while now.

Yeah, this is a time for hugs.

"I try to worry about the effect I have on other people. I don't want you to end up... Too dependent on me. Even if many succubi would love that. A steady fuckbuddy who's in love with them is the dream, you know? Set for life! Unless the puchuu screw things up. But- I'm not going for that. We can totally be friends but- I want to introduce you to other magical beings so it's not- I don't know..."

Hughughug.

"....You're very sweet, y'know? And I can understand not wanting to have someone end up too dependent on you. Sorry if I've been like that and I'll try to not end up too dependent or clingy or anything else, and I'd be happy to be introduced to other magical beings if you'd want to do that."

"I'd also really like to be friends if I haven't scared you off it by getting too attached..." 

"I think we're fine at this point. It's also kind of natural to like someone who shows up and helps you a lot, and you're having sex with. I just feel it's responsible to bring things like this up early and often. I'm gonna think about which of my magic friends is best to introduce you to. Maybe another succubus."

"I'm glad it's fine, and you're being much more responsible about this then me, and I look forward to meeting whichever of your friends you decide to introduce me to!" "and fucking you at the same time as them if they're the kind of friends who'd be into that" nope, not saying that, "would you not be worried about another intruding on your profit margin if you introduce us?" or that.

"Aaand now I'm wondering what happens if two succubus make someone cum at the same time, do they both get a full orgasm of essence each, or do they each get half of an orgasm's worth of essence?"  

That's probably fine? Alex actually says that instead of thinking about it and deciding not to.

"Hehe. And I bet the only reason you're wondering is scientific curiosity, hmmmmm~? It splits based on... Participation, is the closest gloss."

Myra will kiss him now, squeezing him close and rubbing her hands over him.

"O-of course! Science is very dear to me, which is why I must attempt a replication of your claim by fucking multiple succubi at once! There's definitely no other possible explanation then pure unadulterated scientific curiosity for why I might do that!"

Alex may have broken down laughing several times while saying that, and will happily return kisses and rub his own hands along Myra in return.

"It's a totally understandable and reasonable reaction to want two or more hot girls to fight over your dick because they both want that sweet, sweet essence. I bet they'd even shapeshift to look however you want, if you promised to pick them. You could have eight or ten hands all over you, massaging and licking and covering every part of you with warm, sticky lovey-lovey feelings... The ones waiting their turn would watch and touch themselves because it's so hot... Or maybe put on a show with each other to keep you riled up..."

Oh look where her hand has ended up stroking and rubbing slow palm circles over. Looks like cuddle time is over.

"O-oh my, having so many girls rubbing and licking and maybe even grinding their pussies and titties and against me, all while their fellows watch and try to arouse me even further would be quite the situation to end up in."

Based off the state of his cock it's quite an arousing, though that might just be from all the rubbing and stroking it's receiving from a hot girl, who's breasts Alex has started rubbing and gently massaging as well.