Act meek and apologize

"S-sorry," I say, blushing hard.

Samantha's expression softens and she shakes her head. "No, it's okay," she says. "We shouldn't tease you so much. It's a natural reaction. Right?"

She gently elbows Becky beside her, who finally looks away from my penis. "R-right!" Becky agrees.

Susan sits down on one of the beach chairs. "If anything, I guess it's a compliment," she says as she wiggles her butt into a comfortable position in the chair. "You couldn't resist getting hard in front of three gorgeous beach babes." She winks at me and I feel my face get even redder.