Take Sarah's advice

"That's not a bad idea, Sarah," you say. "Just in the interests of fairness, of course." Sarah sticks her tongue out at Ashley in triumph. So far, Sarah is taking her mandated nudity quite well—she's embarrassed, but not showing any real anger at you. This is just an accident that's happened to her today, stumbling across your whims, nothing more. It's not going to harm your friendship.

With that in mind, you turn to look at Ashley as well and size her up. You started with Sarah at the bottom, so why not continue with Ashley's extremely promising top? "All right, Ashley, I want you to take your bra off, and leave it off until I say so."

Ashley sighs reluctantly and says "Really?" but doesn't hesitate to start following your order. She reaches down into her cleavage to unhook the bra, slips the shoulder straps down off her arms and pulls it out from underneath her dress. "I guess I should have expected this," she mutters as she folds the bra up and stashes it away in her bag.

Freed from their containment, her heavy breasts hang a bit lower on her chest, and you can see her nipples poking into the soft fabric of her dress. You reach over and give one soft boob a good squeeze, jiggling it up and down inside her dress. She watches you idly, not excited or upset but just seeing what you're doing. For good measure you pinch the bump of her nipple between thumb and forefinger; she rewards you with a slight grunt of discomfort, but doesn't complain out loud or do anything to stop you.

While you're still playing with Ashley's breasts, the instructor arrives and starts setting up for the lecture. Clothing controller or no, you know you'll catch an earful if you're heard talking after class begins, so you'd better hurry up for now. Looking over at Ashley's pillowy chest gives you an idea. "Okay, now pull your tits out of your dress and keep them out," you say quietly, pitching your voice so only the three of you can hear it. "Don't cover up with anything, either."

She gives another resigned sigh and then reaches down into her cleavage to work her boobs free. The neckline of her dress is loose and stretchy enough that she is able to do so without damaging it, and soon enough she comes back out with a handful of titmeat, which flops out onto her chest while she repeats the process on the other side. Her breasts are even more shapely now that they're released to spill over the neckline of the dress. Her nipples are light brown, with wide areolas, and they start to stiffen slightly in the cool air of the lecture hall. You squeeze her bare tits in your hands again, feeling their softness and the warmth of her skin. Her face reddens with embarrassment at being groped so shamelessly, but as before she lets you have your way with her without resisting.

The instructor either doesn't care about your antics, or more likely hasn't noticed in the gloom of the upper rows, but either way he starts the projector and begins the day's lecture without comment. You settle in to listen by leaning over the armrest of your chair and resting your head on Ashley's big tits like two warm soft pillows. You spend the rest of the class that way, occasionally burrowing your face further into her cleavage or giving her nipples a kiss for good measure. Ashley tries to focus on the lesson despite your distractions, but judging by how blank her notebook remains she isn't having much success.

After the lecture ends, the three of you pack up your materials and get ready to head out. During class the other students were focused on the instructor, facing away from you, but now as they file out towards the exit both Sarah and Ashley attract a number of wolf whistles and lewd comments as they pass. "Nice jugs!" one calls as Ashley tries to sink further into her chair, though she still follows your command from earlier and doesn't cover her breasts up. A few also stop for a minute to peer at Sarah's exposed pussy, although they soon get bored with only being able to look but not touch. Both girls' faces and ears are red with embarrassment by the time everyone else has left, although Sarah's pussy is fairly dripping with wetness, even more so than before.

"Um... I need to get to my next class," Ashley says, in a much more subdued voice than before. "Can I...?" She gestures to her tits where they're still spilling out of her dress.

Sarah chimes in, "Yeah, I do too. Come on, John, you've had your fun. Let me put my clothes back on, please?"