A midnight thirst...

You wake in the middle of the night, and the clock comes into focus... 1:21 am. Jenna is snoring softly. You have to pee, and your mouth is dry. You decide to head downstairs to pee and grab something from the fridge. After emptying your bladder, you wander to the kitchen, pulling open the fridge to grab a beer.
As you take a swig and gaze out into the backyard, you hear a noise from the living room. You quietly pad over to look down into the recessed room. Karen is gone; she's probably gone upstairs. The dim light from the kitchen shows the faint outline of Kayla on the couch. She's sprawled on her face, and the blanket that was covering her has fallen off. You realize, suddenly, that her position is very dangerous for a drunk person: her airway could be easily blocked if she vomits in her sleep.
"Kayla..." you kneel down to gently shake her awake.
"Hmm..." she shifts, eyes fluttering open. "James?"
"Hey...I just need you to sit up, you could **** if you sleep like this."
"Oh...fuck..." she sits up. "My head is spinning. Thanks..." she looks around, reorienting herself.
"I guess you had a good time tonight, huh?" It's still quite dark. You can't make out her features very well.
"Yeah..fuck, yeah. That was great. I never knew Jenna and I had so much in common." She smiles, and rubs your arm. "Thanks for inviting me over. And thanks for persuading her to invite me out."
"I didn't do anything on that front. I was surprised when she did it." You put your hand on her knee.
"She's quite a dancer. Although..." she covers a small burp with her hand. "...does she always... dance with other guys?" She seems unsettled.
"Oh we have a rule at the dance club. Either one of us can dance with anyone we want, no jealousy." You're starting to become uncomfortably aware that Jenna's dress doesn't really fit Kayla. Her tits are close to popping out, and the hem is riding up dangerously. Her legs...you can't help but enjoy the feeling of them under your fingers.
"Well...you must have a very...trusting relationship..." did...did she shift her leg just then? It seems that she glanced down at your hand as it rests on her knee.
"Yeah... she's never given me any reason not to trust her..." you should probably take your hand back.
"...Of course." Had...she hesitated?