Penny can't resist

Ah, at least I bought myself some more time, Briana thought to herself while laying down on her belly to let penny apply the sunscreen. Momentarily she relaxed yet still internally kicking herself for offering up deals without thinking them through first. Penny was determined to get her way and at this point it seemed like Briana's only item of clothing for the next two weeks, were directly in Penny's sights.

The whole situation was getting out of hand and Briana wanted nothing more than to get out of this whole mess without incident and preferably in the least embarrassing way possible. This was proving more and more difficult as they were still out in public with people around, at a clothing optional beach no less. Briana couldn't let her secret slip, not yet anyway and especially not here.

As penny leaned over Briana's bare back and began to apply the sunscreen, she was very gentle with her massaging technique. Briana was soon forgetting about the nude beachgoers all around her and wondering if they actually thought she was "Brian" or really "Briana". slowly closing her eyes the relaxing massage continued. The feeling was really wonderful, she'd never really had her back massaged like this before.

Her eyes suddenly shot wide open and she began blushing bright red as she felt Penny's hands drifting down past the waistband of her trunks then onto her plump butt cheeks. The trunks were quite thin so she knew they wouldn't give much protection from Penny's wandering hands. Penny's skilled hands kneaded briana's butt, massaging it from top to bottom.

This was part of the deal they'd agreed to Briana realised embarrassingly, but what was more shocking to her was that it was starting to feel good. In different circumstances, she might've actually enjoyed it. She still had her trunks at least. Penny was keeping her end of the bargain, or she was for now Briana thought.

As the massage continued, Penny became more brazen and began to slip her hands underneath the waistband of briana's trunks quickly grabbing a whole handful of briana's bare ass in the process. After getting in a quick feel, she grabbed the waistband and yanked it down. Half of Briana bare pale butt cheeks were exposed to the whole beach, it all happened so fast Briana didn't even realise what was happening until she felt a cool breeze on her butt cheeks. The mischievous Penny then gave Briana a firm spank to her left cheek.

"H-hey! What the heck!? That wasn't part of the deal" Briana squeaked as she lifted her head and turned back towards the grinning nude Penny while pulling up her trunks back up again.

"Oh come on, relax Brian! You still have your trunks don't you? I just couldn't resist! Those cheeks are just too delicious!

"Well don't try anything funny like that again" Briana tried to sound assertive, but it didn't really come out that way and Penny just laughed it off as harmless flirtation.

"Well Brian's got his panties in a twist!" Penny said with a giggle then went to squirt some more sunscreen into her hands.

Briana went to lay back down trying to hide her blush and ignore the embarrassing comment, she wished she did actually have her panties right now, she didn't even have those for further coverage at the moment.

Briana couldn't completely let herself be comfortable during the rest of the massage because she was terrified Penny would try something funny again and discover what was actually between her legs. How would she react? Would she tell everyone around? Would she laugh? Scream? Be annoyed Or mad? Or even just ditch Briana right then and there? If so, how would she get home? She didn't have her phone, or any money. All she had were these embarrassing trunks to her name. She didn't even know where this beach was.

The massage came to an end as Briana felt her back slick with sun lotion. Her paleness like a beacon to the entire beach.

"Well, I think you're all covered cutie." The nude Penny declared.