This is a much shorter story, but the couple invited me back for a small birthday gathering for her birthday with her boyrfriend and some other friends while my bf was out of town for work. It was a pool party so I wore a bikini under my clothes in case we got in the hot tub later. The party itself was pretty mellow and nobody was getting out of hand. As the night progressed, her bf keep bumping into me and rubbing against my body as he walked by. I could feel his cock get harder each time to tease me.

Eventually everyone decided to get in the hot tub so we all got in and keep talking and enjoying conversation. After a few drinks I had to go to the bathroom so I get out and go inside to their guest bathroom upstairs. As i'm finishing peeing I hear some footsteps on the stairs and a very gentle knock on the door. I hear a quiet 'can I come in?'

Before I could stand up to pull my bottoms, my friends boyfriend walks in and closes the door behind him. He immediately looks over my body and says I looked like a good girl in my bikini. I was a little taken aback by his entrance, but his comment made me flutter inside. I quietly answered with a an innocent look, 'do you like when I'm a good girl?" He nodded and said he loves when I'm a good girl and stepped closer to me looking at my eyes. He pulled me in by my top strap between my breasts and asked if I wanted to be a really good girl as he gently pulled my top up over my bare breasts.

At this point I could feel his cock was hard in his shorts rubbing against me. I gave him a little nod and asked how can be a really good girl as I ran my across his bulge. He slowly pulled his pants down and asked me to show him how good I am as his thick cock popped out of his shorts. I whimpered and went to my knees slowly taking it into my hand slowly stroking it as I looked at how big it was. "show daddy how good of a girl you are.." as he looked down at me stroking his cock.

I took his cock to my lips, kissing the tip gently as i slowly stroked it in my hand. "that's a good girl" he said running his hand behind my head gently grabbing my hair. "now lick it for daddy" he commanded. I took my tongue out and licked the tip gently, covering more of his throbbing head with my tongue and lips and he moaned slightly pushing his cock towards my lips into my mouth. I wrapped my lips over his head and started sucking it as I stroked it more into my mouth with each push. He started pushing it deeper into my mouth and said he wants to give me all of his cum for being a good girl before we go back outside to the hottub. I moaned as he said that nodding while he fucked my mouth. I pulled it out and begged him to cum in my mouth as I put my tongue out for him, stroking his cock and licking the tip begging for it to cum. He tensed up as my mouth was open and said he was going to give me his warm cum. I stroked faster as his throbbing cock started pulling in my hand, shooting thick warm strands on my tongue and down my throat, dripping down my chin. I stroked as he filled my mouth, feeling him quiver as his last loads dripped out of his tip. I took my tongue to the tip and licked the remaining cum from his cock, rubbing it over my lips until all of it on my face wiped into my mouth to swallow.

After we finished, I asked if i was a really good girl tonight, and he smiled and said the best girl. Then he said to keep it out little secret before we went back into the hottub with his girlfriend and other friends for the rest of the night.