The stepfather's discipline falters as he watches his stepson's ass bounce in the mirror, the young man unknowingly putting on a lewd show while doing late-night exercises. The stepfather's cock tents his pants, and he can't help but approach, running a hand over the sweaty, flexing muscles. His stepson turns, surprise flashing across his face before he grins, pushing the stepfather onto the bed and climbing on top, straddling him. "You like what you see, Dad?" he teases, grinding his ass against the stepfather's crotch before leaning down to kiss him, their tongues clashing as they rut like animals.