"Oof!" Bobby laughed as Peter tackled him, the man's (super)natural spider strength knocking him off his footing as he carried them deeper into the water. He didn't fall-- the viscosity of the water provided enough buoyant resistance that he was able to just float along with his arms wrapped around Peter's torso to anchor him.
"Now my clothes are all wet!" He yelled in faux protest, as if he wasn't about to take them off anyway. Once they'd gotten out far enough, waist deep or so, Bobby pulled off his crop top and temporarily hung it on his shoulder. Next came his shorts, kicked off and plucked off his foot with a flexible hand. Bobby grinned and balled them both up before sending them skipping across the surface. When they touched the water it turned to ice and catapulted them onto the wet sand before melting back into the ocean.
"Mm, now what were you saying? Oh right. It's not like there's any good beaches in New York City anyway. Coney Island...Brighton...nah."
Bobby threw his arms and bobbed up into the water where it became clear he wasn't wearing any underwear.
"And certainly no beaches in Queens, mister friendly neighborhood Spiderman."