On Her.

Harry groaned and thrust. He was going to cum. As he looked at Hermione moaning with his cock moving in and out he decided to change things up.

Just as he was about to blow he pulled out and his cock erupted sending cum all over her naked body. But what he didnt expect it was for it to fire out what looked like a gallon of hot cum on her and the ground.

"Shite! Sorry Mione." He breathed as he saw her now cum covered body.

Hermione, coming down from her own orgasm, looked down and saw her body. "Bloody hell. Good thing you pulled out. I would have looked pregnant if you shot that in me."

"I don't know why that happened."

"I do. Its a rare side effect of the Lust Spitter on men after the effects wear off. It can cause your cum to be more potent and increase your output." She explained.

"Is it permanent?"

"No, only temporary. Two or three more loads and it will go back to normal." She stood as the cum drained down her nude body. "Now I am in need of a wash. You do too."

Harry followed her to the ocean where she smirked and took off running into the tide.

"Come on!" She called as her bare ass bounced.

Harry laughed and ran after her.

They splashed and cleaned each other of a while, trying not to engage in another round of sex, for a moment it was like a tropical vaction instead of a survival show.

When they were done he asked. "So what is the plan for today?"

"Work. We still have weeks of survival to do." She reminded him.

"Right so what first?"