It's spa time.

You check-in at reception, and Gemma looks at the spa menu while Rebecca books the two of you a couples massage. You head downstairs to a quiet area and are brought into a room with two tables. You and Rebecca strip down in a changing room and wrap yourselves in towels provided to you by one of the masseuses., before heading back to the massage room. Rebecca lies down face first on one of the massage tables, and her masseuse draws a curtain close between the two of you. You lie down too and hear the rustling of the curtain and a hand on your shoulder, turning you over. You turn to see Gemma standing there with a naughty smile and bottle of massage oil in her hand.

“Oh this is going to feel so good,” you hear Rebecca say from the other side of the curtain.

You try not to panic, but Gemma does her best to fluster you by ripping your towel off your naked body and pouring a thick cascade of oil all over your cock and balls. You flinch at the sensation of warm oil hitting your private parts, and can do nothing as Gemma climbs onto the table between your legs and begins massaging your oiled balls in her hands until your cock is rock hard. She unbuttons her shirt, revealing her bare tits, then slides both hands up the length of your shaft and settles at the head, rubbing the underside of the tip in soft circular motions, occasionally using her thumbnail to graze back and forth across your slit.