You want a titfuck

"No, one isn't enough. I want to fuck your boobies next."

Ellen blushed again, taken aback by your vulgar request. She glanced down at the erection between your legs and imagined it sliding between her huge puppers.

"What, why? Can't I just use my hands again?" She asked, voice flustered.

"Please, Ellen! I think it would feel really good."

"No! That's really weird and-" Her voiced trailed off when you used the pendulum again. Obviously she wasn't going to agree to something like this when you were just her brother.

"You secretly lust after me. You're too embarrassed to take thing further and love that I have this medical condition and need your help to relieve myself. Thus, if I ask for any sexual favors, you pretend you don't care but actually enjoy it."

End command. When Ellen came to, you repeated the request to remind her.

"Ugh, I guess I have to. Gosh, you're such a drag. Let's get this over with."

"Just lie down on the bed, and I'll do the rest."

She nervously laid down. Being sexually inexperienced and having little interest in the matter, Ellen didn't really know how a titfuck worked.

You climbed onto the narrow single bed straddling her torso. You positioned your throbbing erection at the base of her tits and pushed it in under her bra. It was a hot day and Ellen had exerted herself jerking you off, so she had worked up a bit of sweat. Combined with the leftover saliva and cum, your cock slid easily between her cleavage until it peeked out the top.

"Oh my god Ellen your tits feel so amazing!" It was the perfect tightness and warmth. You begin thrusting your hips back and forth to fuck her tits. Ellen again hid her embarrassment and desire behind her phone. Meanwhile, you indulged yourself while staring intently at her cute face.

You pounded away until the pleasure reached a climax. This time you said nothing to Ellen, and the first rope of cum that exploded from between her breasts startled her.

"Oh fuck, what the fuck! You're cumm- cumming all over me!"

Indeed, a prodigious amount of cum was being blasted into her face and hair. The dizzying pleasure of orgasming between her huge fat tits made it hard to focus on what she was saying. By the time you were done, it looked like she had been on the receiving end of gangbang.

"Shit, I'm so sorry Ellen!" You said without even looking remorseful. You grab some tissues and help her clean up, though she was silently fuming at you the entire time. When she could finally sit up without splashing more cum all over the bed, Ellen immediately headed to the bathroom for a shower.