Mara escalates the aggressiveness of makeouts as long as it keeps getting a positive response from Katie. She moans softly at the touch as Katie's arms wrap around her.

Indeed it does keep getting a positive response. Her hips buck involuntarily. She moans, the sound muffled by her mouth being interlocked with Mara's. 

Mara wiggles against Katie in response to her hips bucking.

"Mmmhhhh, you're so big and heavy, your wiggling is like an earthquake. I hope the furniture holds up when we're both that heavy."

As Katie withdraws from makeouts to talk, Mara tries planting kisses in other places. She leaves lipstick marks on Katie's cheeks, forehead, and neck.

She would be grossed out by this, but she's too in the zone to care. She'll wash them off later. "I'm so happy to have corrupted you. Excited for you to return the favor."

"It's my pleasure."

Mara experiments with various forms of hand action on Katie's clit and pussy.

"Mmmhhhh, yeah, that's it, fuck, I'm close... Make me cum, Mara, seize me, take me, make me yours... Turn me into a fat, feral fertility goddess... "

Mara fingers Katie with increasing intensity, and cuts off her words with a return to kissing on the mouth.

She twitches. Shivers. Stares into Mara's eyes as an orgasm washes over her.

"You have pretty eyes. Was kind of distracted, the other time, because...you know."

"You too..."

"Thank you!"

Mara shows no indication of lifting herself up off Katie. In fact, as she takes her hand off Katie's crotch, she wraps her arms around her.

"Mmmm, and so warm and soft, too..." She nuzzles Mara's shoulder affectionately.

Mara accepts the shoulder nuzzling, and yawns powerfully.

"Mmm, I could get used to this. Could I have a blankie, though?"

"We can share one! I'll be heading up to the bedroom; you can come with me. Taking any technology upstairs or downstairs will break it if it hasn't already, though; if you've got a phone on you, plug it into that outlet over there or, better yet, one in the tech room."

"Don't have my phone on me anyway. Is there a bathroom attached to the bedroom though? Kinda wanna wipe my face off."

"Of course there is!"

Mara scoops Katie up and carries her up the stairs to the bedroom.

She squeals excitedly. God she hopes this is Mara being strong and not just her being skinny, she doesn't have much of a frame of reference for these things.

(Mara isn't significantly stronger than average, at least right now. One might notice that the phrase "working out" has "work" in it. However, it's essential that she continue to be able to physically overpower Katie as she gets larger; she'll figure something out.)

When she gets to the bedroom, she sets Katie down, and gestures to a closed door.

"The bathroom's over there, I'll let you use it first."

She goes in and quickly wipes  the makeup stains off her face with a wet piece of toilet paper. As nice as being kissed by Mara is, that was getting really annoying. 

In doing so, she might notice the bathroom is HUGE. The counter and mirror are average sized (though if she opens any of the drawers, she'll see that they're bigger on the inside), but the bathtub is the size of a small swimming pool.

Fascinating! This will probably not be conducive to anything though because of her weird sensory issues about soap and shampoo. Thankfully Mara has an actual swimming pool too.

When Katie is done with the bathroom, Mara enters and removes her own makeup, then lays down in the bed (also huge).