Not this time

Yes, having a photo of his sister sucking his dick would be way cool. But was having that photo worth risking the blowjob she was giving him right now? Matt didn't think so.

"When you finish," he groaned, "I want you to teach me to eat pussy."

She pulled away from his cock for a second. "But that's disgusting."

"It isn't to me. Besides, it's not fair that you get to learn what makes guys happy and I don't get to learn how to make girls happy."

"Happiness is not just about orgasms for women."

"Maybe not but it sure doesn't hurt." With that, he added just a little pressure to the back of her head. He didn't want an argument, he wanted to blast his load... and if his sister wanted to catch it, so much the better.

"You get three choices," Matt said. "And guys like all of them. I can come on your tits, on your face, or in your mouth. If I come in your mouth, you can spit or swallow."

She pulled away again. "Which do guys like best?"

"Swallow."

"Then that's what I'll do."

She went back to work and, with a little coaching from him, added hand motion to her sucking.

Matt would have been happy to enjoy being sucked for hours but it only took a few minutes before he felt the pressure building up in his groin. After all, he was a teenage boy and he'd been waiting for the moment to blow his load on real girls for years.

"Get ready," he groaned. "About to come."

She responded by taking him deeper into her mouth and sucking hard.

That pushed him over the edge.