Erica offers to suck your cock while Gemma grows hotter.

You remain hard as Melanie holds you lovingly and strokes your member like it's the most normal thing in the world. Still, there's a window of opportunity, and Erica can't help but lick her lips; she clearly wants to join in on the "mother and son" action.

"Hey, Mom," Erica begins with a smile. "Why don't you just focus on feeding my little brother there, and I'll help him with his stiffy instead?"

Melanie is overjoyed by the offer and can't help but giggle. "Oh, sweetie, I appreciate it. I don't mind helping him, but since you're his personal slut, it's only right for you to take charge of your little brother."

Erica grins, and you aren't able to focus any longer. The thought of being sucked off by your cousin once again while Melanie nurses you causes you to shiver and groan. Your cock twitches once Melanie releases her hold, now expecting your cousin to fulfill her responsibility to her "little brother."

She does just that, dropping to her knees and then shuffling her way over to your cock, which is practically spewing out pre-cum in anticipation. She lets out a warm breath first, causing you to groan and shuffle your legs, trying hard not to cum just yet.

"Sweetie, don't tease him like that," Melanie chastises, but there's a smile on her lips: she knows her "son" is enjoying it. She leans down to kiss you on the forehead, causing you to hum and snuggle further into her tit.

"Sorry, Mom," Erica answers. "It's just that...my little brother is being awfully cute right now."

Melanie hums in agreement, stroking your hair now that she has a free hand. Her eyes are so full of warmth and love that you almost believe her to be your real mother in that moment. Over time, that's likely to happen more and more often... And so the question is, who exactly is brainwashing who?

Erica pulls you out of your trance as she engulfs your cock. You grunt, tightening your fists and then moving to grope Melanie's other tit, feeling it up through the bra in order to help you maintain focus and control. You can't disappoint your eldest "sister" by cumming so soon, after all.

Now, in addition to the slurping and smacking noises that you're making, Erica is adding a more gutteral noise as she bobs her head slowly. If anyone were to pass by and overhear, they may think that some sort of monster is being unleashed.

Gemma, who's been sitting and watching the nursing session unfold, begins to pant heavily. She can feel herself becoming wet down below, and although she tried to deny it, seeing her boyfriend being pleasured by his mother and sister/cousin was growing on her.

Melanie is the first to notice how wanting her new daughter seems. She smiles sweetly and then gently pushes your groping hand away from her tit, pulling it out of her bra and revealing its leaking glory to Gemma.

"Sweetie, come here and nurse alongside your brother. Since you two are dating, it's only fair that I make sure I take care of you on equal terms."

You're impressed with Melanie's initiative... That's an insane offer, and it didn't take a single push from you. This kind of proactiveness makes everything seem so much more real.