Milly and Katie play games with Leo

"Hey Leo!" Katie yelled out, wanting my attention, "Can you go inside and grab the sunscreen from the kitchen, it's in the medicine cabinet, to the right of the fridge."

"Uh sure," I replied.

Hopping out of the pool, I hurried off to the gate. The girls definitely took notice of the way my cock looked in just my underwear as the material stuck to my body tightly because of the water. There was a clear outline of my bits and pieces underneath.

Drying myself off with the spare towel that Katie gave me, I made my way back inside.

I was still dripping some water from my legs as I walked around Katie's kitchen, looking for the sunscreen. By the time I had grabbed it out of the cupboard next to the fridge, I wasn't alone.

"Found it? Taking your sweet time."

I turned to see my busty blonde friend standing there, holding onto the edge of the island bench. It was impossible not to stare at her boobs, sitting nicely in the pink bikini top. Her sunglasses were sitting up on top of her head so I could see her pretty blue eyes again.

"It wasn't that long."

She let out a little 'hmm' as she started to walk around the other side of the island bench, very slowly.

Milly caught my eyes, "Sooo... not a virgin anymore huh? You went to the master to learn a thing or two?"

She certainly didn't know that it was only Katie's first time too. Of course I didn't want to reveal that to her, keeping Katie's secret was important to me so I just shrugged her question off.

"So why her?" she asked me, "Just curious... didn't want to come to me?"

Again, I shrugged my shoulders, awkwardly standing in the kitchen in my dripping wet underwear, "I don't know... I didn't really plan any of it."

She circled the bench a little more, running the palm of her hand over the top of the bench, "It's okay... I don't think you'd be ready to handle me yet."

This reeked of jealousy. I couldn't believe it had gotten to a point where there was now a bit of tension and jealousy between the girls when someone would do something with me.

I knew right then that someone like Rose would feel the same way as Milly.

But it felt like I had a bit of power finally among these five. I decided to answer her confidently with a bit of cockiness, something unlike me to do, "Actually... I'm sure I could.

That made her chuckle.

Milly had made her way full circle, back around the island bench, not a whole lot separating us. She looked me in the eye, "Oh really?"

"Yeah... really."

Her hand travelled to her back. She undid the strings of the bikini top. It shifted off her chest and Molly did the rest, pulling it completely off her body. In a matter of seconds, her boobs were now free.

Milly was topless.

The third girl of the Saturday Night Five to willingly show me their tits.

They were so nice and round, hanging off her chest. After spending so much time with Katie last night, I was instantly comparing. I couldn't tell if they were any bigger than Katie's. A slightly different shape but they looked just as heavy. A noticeable difference was her nipples, Milly's were pinker.

Pinker than both Katie's and Rose's.

I had no way of hiding my erection in my underwear. It shot up immediately, hard and stiff. Milly standing in just her bikini bottoms now, glanced down and smirked at my dick.

The blonde walked towards me and grabbed the sunscreen bottle out of my hands. Again, I couldn't stop staring at her exposed tits. She reminded me of a young Sydney Sweeney, an actress I had jerked off multiple times.

She whispered in my ear before passing, "Don't kid yourself... you couldn't last a minute with me."

She brushed past me, wanting to purposely rub her right breast up against my arm as she did so. Milly headed back out the sliding door, not a care in the world that she was half naked now. I didn't know what neighbours were next door but if they could see over that fence, they'd get one spectacular view.

I followed her back outside, aware that I was sporting a massive boner now. Feeling a little weird about it and wondering what Katie would think, I hopped back into the pool straight away, sliding in the shallow end first.

She's not your girlfriend... we're not even a thing, I kept reminding myself. There was nothing wrong with me getting hard over Milly's bare tits.

"Lost your top huh?" Katie asked amused when she flipped back onto her back to see Milly coming back.

"Oh well Leo here thinks he can handle both of us now," she said, loud enough for both of us to hear, "Guess he doesn't think we're that hot anymore now that's he, not a virgin."

"Is that right?" Katie said, with a smirk on her face, looking over at me in the pool.

She was twisting my words and basically straight-up lying, "That's not what I said... Katie I didn't say that."

"I don't know Leo... sounds like you're getting a little cocky now," Katie replied with cheek.

I stood in the water by the edge, looking back and forth between them. Milly came over to sit on the end of Katie's lounge chair, I watched them whisper to each other.

After a bit of familiar giggling, Katie started to untie her white bikini top. Before I knew it, there were two sets of boobs in my vision.

"Alright then hot shot," Milly called me, "Let's test you out... I know you can't last the day out here looking at us without running off inside to jerk off or end up begging us to let you touch them," she said, pointing at their breasts.

I didn't know what sort of challenge this was.

The girls going to be topless out by the pool all day sounded just like a big win for me.

"You think you can last all day without touching yourself?" Milly asked.

I couldn't see their eyes because they were covered by sunscreen but I could feel both girls staring at me. In reality, I want to wank right now but this seemed like a bit of fun, "Alright, alright... I'm in," I told them, "I won't, I know I won't."

The girls smiled at each other.

It was game on.