Yes

Her dream takes a weird turn when Mr Rabbit moves over to her crotch and starts trying to poke its nose inside.

"Silly Mr Rabbit. That's not your burrow!" She tries to push it away but finds the small rabbit harder to budge than a boulder.

"Heyyyyy! Stop!" She whines as its nose insistently pushes at her pussy. "It's not gonna fit! I said NO!"

Eris startles awake to the sound of a loud crash. Blinking the sleep from her eyes, she sees Marcus buck-naked, lying dazed on the floor of his room where she had kicked him off in her sleep.

"What's going on?" She looks down at herself, realizing her state of undress. "Marcus?"

"It- it- it's part of the treatment!" He blurts out before clapping a hand over his mouth.

"Treatment?" Eris tilts her head quizzically.

'She believes me?' Marcus thinks incredulously. "Yeah it's for your condition. I need to give you my cum in order to prevent your tits from growing even more!"

For a moment Marcus thinks she isn't going to buy it, and he mentally prepares to never see her again, but then Eris nods and says, "I see. What's cum?"

Marcus can't believe his luck. "It's what comes out from my cock when I'm sufficiently stimulated." He gestures at his erection.

"Cock... cum..." Eris considers these foreign words. "So what do you need me to do?"

"Just lie on the bed and I'll handle the rest."

"Ok."

Eris lays down and spreads her legs, patiently waiting for Marcus. Kneeling in between her legs, Marcus starts fisting his cock, jerking it to the erotic sight of the naive girl in front of him.

"Hey, can I put it in your pussy?" He asks, trying to push his luck. "It'll work better that way."

Eris frowns and Marcus quickly backs down. "Or I can just rub it against the outside. I'll cum faster that way."

When she doesn't protest, he hurriedly moves closer to her, slapping his shaft against her labia before she can stop him.

"Yeah, just like this." Marcus says as he starts to swing his hips, sliding his cock along her pussy lips.

"Mhmm, this feels kinda good." Eris moans as her little clitty is rubbed by his dick.

"Oh yeah?" Marcus increase the pace of his thrusts, making them longer and deeper.

Occasionally, his tip would catch at her entrance and threaten to penetrate her, but the way their bodies were angled prevented true intercourse. Of course, this was all very stimulating for Eris and she began to tilt her hips, trying to feel a greater intensity of pleasure.

'Maybe I could let him put it in, just for a bit.' She thinks. 'If I tilt my hip a bit more when he thrusts...'

She's about to act on her plan when Marcus grunts, "Cumming!" and proceeds to shoot a thick load all over her belly.

Eris curiously uses her fingers to scoop up some of the goop. "So this is cum..."

A sudden wave of shame overcomes Marcus. He just took advantage of his best friend. How could he!

"Well, that concludes treatment. You won't be needing it anymore. Why don't you go get cleaned up in the shower while I clean up the room?" Marcus blusters, trying to lessen his feeling of guilt.

"Sure!" Eris chirps, skipping out of his room, her dress still bunched around her midriff, exposing her bits to the world.

"And cover up!" Marcus yells after her, sighing.