This story took place the summer after I graduated high school. My girlfriend in high school, her name was Krista, was a very strict born again Christian. While we would never have actual sex she had no problem with mutual masturbation.

This story is how she unintentionally gave me one of the best summers ever.

So some background… most weekends Krista and I would hang together. Things started with making out and touching each other. When we started hooking up it was all over the clothing, but she progressed to mutual masturbation when Amanda her friend told her that really wasn’t a sin and she was still pure for marriage.

For me this was great, but Amanda explained, to Krista, that you can tell how long it had been since a guy jerked off buy how much they cum when you jerk them off.

Well, the first time Krista jerked me off I did not cum a lot. She was not very good as it was her first time, but she made me promise that I would not jerk off between our masturbation sessions. I agreed and was very happy because as Krista got better this made thinks more fun. She would call my cock her “cum volcano.”

Sucking my cock though was always a no no for her which is something I wanted to teach Krista, but she did surprise me in another way.

So usually Krista will have a friend or two over when I would come over to hang out. After they would leave we would get to business. However, about 3 weeks into summer vacation we were hanging out with her friends Amanda and Christy.

We were watching the movie and I remember just wanting the other girls to leave so I could get my rocks off as it had been longer than a week, and I really needed to cum seeing all the girls in the neighborhood wearing less and less clothing as the summer sun heated up. Plus Amanda and Christy were wearing low cut tank tops and had much bigger tits than Krista. So I was ready to blow!

About an hour into being there Krista and Amanada giggle a little and Amanda pipes up, “So Sam, Krista and I were talking about those masturbation sessions and I was trying to get an idea of your size, but little Ms. Virgin Krista has only seen yours so has no comparison.”

I was shocked by this statement and laughed not knowing how to respond. Thankfully Amanda followed up.

“So how about Krista let’s me and Christy watch this masturbation session so we can judge for ourselves.”

I was shocked and looked at Krista who put her hand on my check and whispered in my ear, “would you mind?”

I could not respond other thank to shake my head no that I would not mind.

With that Krista said, “I’ll pull it out Amanda you promised just to watch and not touch.”

“Just get on with it Krista I promised!”

With that she pulls my semi-hard cock out of my shorts.

I hear Christy gasp and Amanda says, ‘Holy shit Krista he’s not even hard and he is huge.”

“Yeah Krista he is bigger than Wayne,” Christy chimed in. Wayne was Christy’s boyfriend.

Krista begins to stroke as I get harder and harder. She cups my balls as she usually does which makes me moan and swallow hard.

“Look at how big that think is Christy,” Amanda said.

“Keep stroking it Krista I’ll bet he really cums hard.”

Krista laughed and said to me, “How long you been holding that load for us baby… a week maybe 10 days.”

“Ummmm-ohhhhh… more than a week,” I moan

Christy chimes in, “the boy has some stamina Krista, or you are just not that good.”

“Shut the fuck up… I told you he has stamina.” Christy asks Amanda, “you think Sam is holding that load back?”

Amanda and Christy get close to me and watch my cock intently and begin whispering in my ear.

“Let that load go big man. Let’s see your cock explode,” Christy teases me.

“Yeah Sam, cum so hard that it almost hits us up here,” Amanda begs.

My cock stiffens and I moan and Krista says, “He is close girls.”

Amanda and Christy begin to rub my chest. I feel my balls swell, and I can’t hold back any longer. I moan and my cock begins to explode.

The first shot hits my chin, and the rest go all over my t-shirt and stomach. I buck under Krista’s control as she strokes me for every last drop.

“Holy fuck that was awesome,” Amanda says.

“Let me get you a towel,” Krista says as she leaves the room.

While she is gone Christy licks the cum from my chin, and Amanda grabs my cock and licks what’s left on the head. They do this quickly as Krista comes back to the room.

Krista chimes in, “So girls what did you think.” They laughed and Amanda said, “Thanks for sharing him a little”

“Now you girls stay away from him he’s mine,” Krista said while she cleaned me up.

“Oh we will,” Amanda and Christy said in unison with devilish grins.

This was the beginning of a very fun summer.

(Let me know if you want more)