Rub against it

You lie still, wondering if Ulfric has woken as well, but his breathing remains regular. Perhaps he's dreaming about someone, or maybe it's just a random hard on. Still, the feeling of it pushing up against your ass is pleasing. Very carefully you adjust your position, only slightly, as if moving in your sleep, but you make sure to grind your backside gently against Ulfric's erection. You feel Ulfric's cock harden further in response to the light stimulation. You wait a while and then repeat the movement, rubbing your ass against the long, hard presence behind you. Your own cock is alive and at full mast, you only wish there wasn't your trousers and Ulfric's underwear between his thick endowment and your hungry ass.

Ulfric snorts suddenly and his posture tenses; he's woken up. You do your best to relax and pretend to be asleep, after all, it's his cock against your ass. An eternity goes by while you wonder what Ulfric will do. At last the tension breaks when his arm pulls you in closer. You feel a gentle thrusting from behind as Ulfric works his erection against you gently. His arm slides gently down your side and he rests his hand on your hip, pulling you gently against him while he slowly grinds.

You dare not move. You want nothing more than to tell him to stick his cock deep inside you, but you worry that he'd stop as soon as you said anything.