Just in time

Matt watched as his sister and her best friend Amy switched off, each taking turns sucking his cock and licking his balls and ass while he alternated between licking their pussies and fingering them. It was hard to believe that his dick could fit inside those tight pussies but he'd watched enough porn to know exactly how it worked... and how much he wanted it.

The girls were horny, obviously. Could he talk them into letting him fuck them? Did he want to?

No way did he want the responsibility of fatherhood. Not to mention, if either of the girls got pregnant, his chances of ever seeing them again went close to zero. But Matt resolved to look into birth control solutions.

In the meantime, he was getting close to orgasm.

"I'm getting close," Amy groaned as he plunged his finger more deeply into her pussy while Karen squeezed her tits.

He reached for her head and nudged it back over his dick. They could all talk later. Now was orgasm time.

Karen, who was sucking his ass, suddenly jerked, then stuck her tongue deep in his asshole.

"Oh yeah," Matt groaned. He shot his wad into Amy's throat, then grabbed her pony tail and pulled her off so he could spray both Karen and Amy in the face.

The sound of tires in the driveway hit just as his second blast struck the two girls in the face.

"Mom's home," Karen said. "Won't she be surpri--" A wad of cum in her mouth shut off that thought and Amy giggled... before getting her own mouth filled.