He's a to her will

Mark stared at the mess before him, his thick, fresh load slowly oozing from the old woman's drooping folds as a cold twinge of terror crept up his spine. The spell was broken by that throaty laugh, the old woman spreading herself wider as she croaked, "Time to clean up, boy." To highlight her point, she reached down and slid two fingers over the slimy, hairy mess, her digits collecting enough of Mark's cum to glisten in the light. She looked to him and beckoned him with her cum-soaked forefinger.

Mark's mind was a blur. In his post-coital daze the clarity of his situation had hit home. He was properly fucked - his semen was everywhere and should she choose to, the old woman could have him locked away for a very, very long time. Not to mention his wife, his friends... his reputation would be in tatters.

As all this rushed through his mind, he wasn't even conscious that he had moved, drawn to the old woman as she beckoned him. He crawled back onto the bed, the smell of his fresh cum thick in the air as he moved back between her legs, and as her wrinkled finger slipped between his lips, the taste of his own seed tingling upon his tongue he knew what he had to do. The old woman moaned triumphantly as the young man's tongue met with her still pulsing cunt, his initially hesitant licking soon intensifying as he warmed to the taste and sensations - the velvety smooth quality his load had added to her already slippery folds quickly becoming an addiction. Before long he was deep inside her again, his tongue plumbing her depths for more of his thick cum which he guzzled down eagerly. His cock was already rock hard again, the sheer depravity of the situation causing him to throb and pulse, constantly on the verge of erupting into the sheets beneath him.

When the old woman finally clenched her cool, flabby thighs around Mark's face and hissed, her whole body trembling as she once more lost control of her bladder, Mark exploded again. The shame he felt as his orgasm ebbed away and he continued to suck down their combined sexual fluids was more intense than any he had ever experienced, and to his terror he felt a flicker of something new, deep down inside. In that moment of terrible, brutal clarity he could not deny... part of him was loving this.