By crystalline water, “brothers having sex with their sisters” lounges topless in a tiny bikini bottom, suntan lotion glistening on her curves. She unties the strings in “brothers having sex with their sisters,” letting the fabric fall, then rubs the slippery lotion everywhere—especially between her thighs. Fingers dip beneath the waistband of nothing at all now; “brothers having sex with their sisters” captures every slick sound as she masturbates shamelessly under the sun. Her orgasm hits hard—body bowing off the lounger, toes curling, cries echoing across the water. “brothers having sex with their sisters” is summer heat turned up to pure erotic fire. (251 words)