Not a chance

Astrid giggled as she sat on her knees, running her finger gently up and down your throbbing penis.

"It's just so... adorable," she said. "A itty bitty, teensie weensie, mini penis!"

With your hands cuffed behind your back, you have no way to stop Astrid's ****. You struggle desperately against the handcuffs, but only succeed in digging the cold steel harder into your wrists. Your over-stimulated dick can barely take any more, and you desperately attempt to moan out a warning.

"Astrid... I'm about to..." you say, but it's too late. You were already on the verge of cumming before she touched you, but now there's no way to stop it. You let out an involuntary moan of relief as you finally erupt, sending your cum all over Astrid's naked body.

Astrid is so shocked she freezes in place, and your full load is sent dripping down her chest. After a few seconds, she looks up at you.

"What the _fuck _Sam?! Jesus, you're supposed to like, warn someone before busting a nut all over them."

You feel totally humiliated, but try to stammer out a response. "I did! I tried!"

"Well not hard enough!" she yells back, still on her knees in front of you. Suddenly she laughs again. "Oh my god, I'm sorry it's just... it's getting even smaller! I didn't know that was possible!"

You squirm under her gaze, wishing desperately you had some way to cover up. With your erection gone, your penis is now shrinking to an even smaller state.

"It's like... sorry sorry I'm not trying to be mean," Astrid said, dissolving into another fit of giggles. "It's like, fun size! In a cute way, I mean! A little mini-penis. Like a bonzai tree, you know? Seriously I've gotta show the other girls this, it's the funniest thing I've seen in forever."

You step away from her and attempt to come up with a response, too horrified to even think about Sasha and everyone else seeing you like this.

"I... aren't you... can you get my boxers, please?" you finally cough out.