Trouble at the beach

Heather stands over Katy and lets your cum dribble into your sister's mouth. You think this would be gross in porn but in real life with women you love and who are into it, it's hot as hell. It has to be humiliating to Katy to get your cum this way, from the mouth of your girlfriend, but at this point it's clear your little sister gets off on mild humiliation by her brother.

"Make out with each other, but don't swallow my cum," you say, standing up as they kneel down under you, looking at each other briefly then locking lips. They kiss passionately, tilting their heads occasionally to let you see that they're swapping your sperm back and forth. You're not sure they'd ever do anything together on their own but they seem to both enjoy doing perverted things with each other at your request, and that's fine with you.

They're even pressing their tits together as they have the perverted makeout session. Heather's big, bronzed tits against your sisters tight, smaller cheerleader boobs, it's a lovely contrast. You're thinking about having another go at one of them (or both?) as you say, "Okay, each take half my cum and turn to face me."

They do as you order, staying on their knees and opening their mouths so you can see that they obeyed.

"Good girls," you say, patting their heads. They should be offended at you treating them like this, but they both are okay with it. Katy is beaming with happiness, actually.

"Swallow," you say, and both women do. You have a boner again already.

"Damn, that's his sister," you hear a voice saying and spin around to see the moped gang climbing over the rocks. The speaker is Greg, the mid-20s dude who thinks he's very handsome, and hot shit since he's head waiter at Ruth's. When really it's pathetic that he's running around with a wannabe gang at his age, but whatever.

You're not sure how much they saw or how they even found you back here in the desolate rocky area.

"Was she sucking his cock?" one of Greg's lackeys says.

"Naw she was making out with Heather," another says, "He has them lez out with each other cause they're sluts". Well that was stupid, but they didn't see Katy sucking you off, and the comment was just a typical douchbag insult? You can only hope.

You help the girls to their feet. You're still in the rocky expanse and can't move around very fast here, and you don't really know what's over the next outcropping of rocks. This isn't a good position. You came here to fool around with your girlfriends, not fight off bullies.

"Leave us alone, assholes!" Katy yells at them as the gang positions themselves atop your rocky hideaway which had felt so secure moments ago. The guys are all naked with semi-hardons as they look at your sister and Heather. If you could fight six guys at once, you would.

"Why doncha make us?" one of the guys says, a chubby guy with a bunch of middling quality tattoos. He looks like he's about to jump down but thinks better of the seven foot fall with his weight on those flimsy sandals.

"Too bad your boyfriend's a pussy, you should get with a real man, Hostess Hotness," one of the muscular surfer dudes says to your sister.

The girls stand behind you, for all the good you can do them. The guys realize they've got you in a bad spot, they literally have the high ground.

"Okay we'll let you go," Greg says smugly, "If your hottie little sister sucks me off."

Katy wraps her arms around you, but seems more scared than defiant. Still, you're glad that your sister is repulsed by the offer... even if she's becoming sexual this summer, you want all of her sexual exploration to be with you. And consensual.

But what to do? If it comes to to it, these guys might beat you up and do even worse things to Katy than make her give one of them a blowjob. You're in a pretty bad position here.

"Or you can let us gangbang Heather," the surfer guys says. Greg glares at him but the other guys like that option, obviously, since it would mean they get to cum. "Won't be the first we've done that," the fat tattooed guy chimes in.

Heather looks to you. "I can do it," she says, "So you guys don't get hurt."

You hate the way she looks when she says that. She's obviously not into it. But she has done that kind of thing before, and it is the option that would preserve your own skin and keep your little sister to yourself.

You glance at the rocky ledge behind you. It's six feet off the ground and those rocks look sharp. If you had all day to climb it this wouldn't be a problem, but you'd have about ten seconds before these assholes grabbed you and your women. And that's if you're lucky.