Yes

Beth gives a sigh, and waves her hand at you, "alright, if this is what I need to do, drop trou and lets get this over with."

You fumbled with your sweatpants, and flopped your hardening dick out into the air.

Silence. You stared at her, a bead of sweat forming on your forehead. She, in turn, was staring at your cock. Her eyes weren't wide, with surprise or with intrigue. Her expression had simmered back into that relaxed, who-gives-a-shit state you're so used to seeing.

"Now that's a kick-ass dick."

"What?"

"Man, wait till I tell everybody. My brother has the coolest dick. Oh man, do you mind if I take a photo? Mary would love this."

"Wait- hold on," you whipped your hand back over your crotch, "first of all, isn't Mary a lesbian? And, y’know, your girlfriend?"

"So? Just because she won't fuck em doesn't mean she can't appreciate a pretty dude. Might have to crop your face out actually…"

"Oh fuck off," you replied, throwing her the bird with your free hand.

"I'm kidding! Well, about the face," she pulled out her phone, levelling it at your crotch, "yo could you get your hand out of the way?"

"No!"

"You wanted me to look at it Dickweed!"

"Yeah, I wanted you to look, not take photos!"

"Hah, so you admit it! You just wanted to show your sister your dick!"

You went beet red, "well hey now, no-"

"Pervert, pervert, look who's a pervert," she sang, dancing up closer to you. You could see her thick thighs straining through her ripped jeans as she bounced towards you.

"Oh yeah? And who's taking photos of their brother's dick?"

"Technically I haven't taken them yet," she said, dropping the phone onto the bed, "but I take your point. In fairness, it's a damn nice dick. Mind if I suck it?"

You blanched, "wait, what? Are you fucking with me?"

"Cross my heart and hope to cum. Besides, I want to get to work later and no way am I going to keep calm without having a go on that fuckstick."

You made a big show of stroking your chin, surveying your sister. The long purple hair with a streak of black through it, those dirty blue eyes, those perky C-cups, and of course, the ocean of ass meat in those jeans. Your sister was tall by any standard, six feet on the dot, but even at that height your head could rest on hers. It gave you no end of amusement watching her various hookups realise that she came from a family of giraffes.

But as you thought, something else popped into your head. Why didn't time stop in the shower? You came into Ava's hands, but you just rode that wave. You didn't think anything of it at the time, but what if you had to cum inside?

"Sure… but I get to choose how we do it. Seeing as I'm driving you."

"Oh you're gonna drive me are you? Dick and a chauffeur, I can see why that shorty likes you," she leapt onto your bed, sprawling out over all the little splashes of sweat that were hidden beneath your covers, "very well maestro. How do you want me?"

"I'm gonna fuck you in the ass."

It did not sound as cool as it did in your head, but Beth's eyes lit up.

"Well aren't you in luck brother of mine. As it so happens, I have a fantastic ass. Everyone says so."

You allowed yourself to fall onto the bed, such that your hands were either side of her hips. She smelled of… well, her. Beth was not one to wear deoderant around the house. You'd since gotten used to it, but up close you could smell the tangy scent, mixed with something like cooked beef. You reached your hands underneath her, and she ground her ass cheek into your palm. After all these years… it lived up to the hype. You buried your fingers into the tight ass of your sister.