Sanji woke up by smelling what smelled like Robin.
"Huh? Robin? What are you doing here?" He asked as he looked around but didn't find anybody. However, he noticed a box next him that had Robin's smell coming from it. "A present from Robin-swan~?!"
Sanji giggled as he opened the box, but sprayed blood from his nose everywhere when he saw a pair of breasts pop out. He managed to stop himself from fainting and examined the breasts. He hit them and they jiggled and he squeezed them he felt like a mound of human flesh.
"I don't believe it! It really is a pair of Robin-swan's breasts! All for me!" Sanji said.
He then excitedly started playing with the breasts and he could feel it reacting back. He groped them and pulled and twisted and clicked the nipples, even motorboated it a few times. He did this for a few minutes until he got hard and took his cock out. He placed his cock into the cleavage and pushed the breasts together to squeeze his cock. He started thrusting his cock in and out of her breasts. His face had a big grin with heart eyes as he giggled absent mindedly while fucking Robin's breasts. He aggressively and haphazardly kept thrusting into her until he finally started cumming, thrusting fully into her cleavage. His cock wasn't long enough to stick out of the other side, so his cum built up inside of her cleavage, she now had three of the Strawhat's semen on her body, which turned her on immensely. Once Sanji stopped cumming her fell backwards onto the ground, his nose pouring blood and his face sporting a massive grin.