As Jeff fondled Mary's lowest pair of breasts, a white substance suddenly shot out of the nipples and onto his arms.
Mary let out of a soft moan. "Whatever you just did, do it again."
Jeff tried to squeeze Mary's breasts just the right way again and after a few tries more of the substance squirted out on his arms, drawing more sounds of pleasure from Mary.
"You're squirting milk on me when I do that" said Jeff. Suddenly he realized his arms were stuck together. He struggled, but couldn't pull them apart. "Correction: your tits squirt webbing!"
The next thing Jeff knew more webbing was splattering against him as Mary's arms worked her other three pairs of breasts. it didn't take long before Jeff's arms were also stuck to his sides.
"I'm getting caught in your webbing. I'm having trouble moving."
"I know" said Mary as she continued to squirt and moan.
Jeff tried to stand up and get away from Mary, but he fell over almost immediately, the webbing having tangled his legs. Mary continued to squirt webbing all over Jeff, who found himself pinned to the floor in what was becoming a cocoon made of spider web. Mary finally orgasmed and sunk to her knees next to Jeff, panting heavily.
"I didn't know you were into bondage" said Jeff. He'd never tried it himself. "Plus whatever this counts as." The web cocoon felt strangely warm and comforting, like being wrapped tightly in a blanket.
Mary smiled. "I don't know what that was, but it felt great. I was just doing what felt natural."
"So what do you want to do with me now?" asked Jeff.