A mutual finish

In a dirty gutter, as sunset's last lights die in the city of Yharnam. Were a monocular wielding curfew-breaker were to inexplicably be compelled to cast their gaze into the dark the gutter, they would be treated to an odd erotic sight. Sprawled on a rock, a young woman shook and made obvious breathy gasps as some legless wretch of thing writhed between her legs, pulling itself into her with its inhumanely long arms. The woman was more covered by her lover than her clothes. The clothes rumpled and pushed aside to mere bands of rags on her. One breast captured by the mouth of the beast, the other shook with slow tempo, emphasizing the motion of it. The woman looking flush and nearly feverish against the pale lover, her head rolled side to side. Its slow, but steady pace unrelenting driving toward one final destination.
Jessica felt a dreadful tension build in her. More and more she rocked her hips, spikes of pleasure radiating from her quim and breast as the beast had her. So close, but not enough she thought. She brought her own hand to her sensitive nub of her folds, as she had done in her own self-exploration. And she felt her body react, her inner muscles tightening, she almost slipped off the rock. This brought the thing to the end of its endurance, it pace doubling and then tripling, as Jessica strummed her button in time, each stroke a small lighting strike in her up her spine. The cock grew even more turgid in her, pulling against her inner walls, and pushing with greater and greater force. Then she felt a cold liquid surge in her and the strange throbbing as it moved through the cock, and Jessica felt her body push over the edge she had been teetering on. Her body spasmed beyond her control, drool spilling from lips as her mind lulled in electric pleasure. The cock continued to deposit its load into her, joining the Brute's work.

Jessica continued to shudder as the beast slowed its thrusts, its cock no longer cumming, and slowly softening, but the beast had a strange sense of momentum. And sure enough, the thing also went limp, splashing into the murk next to her.
Half-lidded, Jessica's gaze again fell on the moon. And she still could feel the pleasure in her body working itself out. But the moon's gaze was insistent. She needed to get home tonight.
Jessica picked up the bandoleer and shuffled through the murk to the ladder, and began the ascent up. Thin liquid dripping from her with each step.