She likes what she sees. (Mature sister route)

"Oh...my...GOD! That is soo tiny!!" Arya squeals.

Oh, man! The embarrassment is killing you. Sure, Arya and you had seen each other naked, but that was when you were kids. This is totally different.

"I know right! It's very very cute too, just like Nick!" she says that with a kiss on your cheek.

You cover your modesty with your hands.

"Hey! I want to look! Move your hands aside!" Arya protests.

"Do you want me to stop?" Riya whispers softly.

Your mind says no but your heart says yes. You shake your head no.

Riya then proceeds to remove both of your hands.

"Bad boy! If you do that again you'll make me mad!" she says with confidence.

Riya grabs your legs under your knee and brings them close to your chest. You were fully exposed to your little sister now, you root and stem hanging below. Your cock is painfully hard right now.

"Da! You are actually less hairy than I am! You are such a little sissy!"

"He is not a sissy. He is a cute boy with a wonderful but tiny peepee. " Riya says.

"He loves being called a sissy. I saw his little matchstick jump when I called him that."

"Do you love being called a sissy Nick?" Riya asks

"Yes." Your prick jumps with excitement again. This was so wrong, but it felt so right. You can't believe your sister chose to get herself involved. She was your sister damn it. But you also admit that a part of you had always wished this would happen. You wanted to get it going with your sister. You just didn't think it'd be this way.

"Well, I've got an idea. Why don't we shave him completely from the ear down? That way we can turn him into an actual sissy."

"That sounds like a wonderful idea. Since I have the bigger dick, I am the boy in this relationship, which means Nick is the girl. And girls are supposed to be hairless and perfect and cute! Do you wanna go through this Nick?" Riya asks eagerly.

You knew she was looking for your consent and that she'd stop all of this immediately if you said so. But you don't want to say no. So you say "Yes."

Both of them start squealing excitedly like little girls.

"Let's go to my room. I have the perfect accessories for him." Arya says.

Riya lifts you up bridal style. "You ready for this?" she asks. You nod yes with a smile. Riya kisses you passionately on the lips and the trio of you head upstairs.