A giant appears. His cock has to be the size of two huge tree trunks end on end and twice as thick. He's been attracted by the smell of sex. Oh yeah, this is why the woods are forbidden.
The jocks are too frightened to move as he picks up up. His cock stiffens as he fondles your breasts with one thumb, delighted when they starts to grow. They're so huge on your now, dwarfing your body but you still feel so good. Your cock rubs against them, getting hard. Your new pussy is still swelling up, forcing your legs apart. The giant sees this as a sign you want to fuck. He turns you around and pushes your pussy down onto his cock. You scream, but the scream is lost in his huge moan as he slides you up and down his dick. He sits, picks up one of the jocks and forces that man down into your dick. As you fuck the guy, you see breasts start to grow from his chest too, becoming DD's in no time. As he grows a huge pussy too, the giant switches holes so you can fuck this other futas new pussy. It's gloriously tight from not being used. The new futa groans in pain, cumming instantly. They don't have nearly as good stamina as you do. The second guy who was left is forced down onto the new futas huge cock too.
You all fuck together, one long fuck train, thrusting in and out. Your vagina cums up to ten times per minutes, your cock cumming every two minutes and filling the new futa up until their stomach is swollen. The semen is then absorbed so that their cock and breasts grow, filling up the poor guys ass. He passes out and is allowed to be pulled off, so the two of you futas and the giant can have peace. He stands up, moving you up and down like a fleshlight as he walks off to his home. He calls over his friends, who take turns either fucking you or the new futa. At one point you have three giant dicks inside of you. They even let you fuck one of their women, who uses your huge cock as a dildo. You're probably going to be their sex slave forever.