This continues immediately after part 3 and is therefore much shorter than other entries since it's more of an add-on.
This gets kinky and crazy so beware. As always, love your feedback.
*****
A couple of minutes had passed. Laura was still lying almost motionless on the bed, trying to recover from her last two orgasms. Meg was very tired as well but at least she managed to speak with me in this break we were having, "Richard, you truly are a wonder of sex. You were holding back last week with me, weren't you?"
"Guilty as charged," I replied. "I didn't want to hurt you or in any way reveal my abilities."
"Well, I appreciate both of you decided to share them with me. Sorry for being so blunt but how the fuck is it possible that you are still hard? I mean, we have been fucking for nearly ninety minutes and you made Laura and me cum at least three times each. And this monster is as turgid as ever."
"Well I have only cum once this evening."
"You say it as if it were normal for a guy to be able to cum multiple times in a night."
"What makes you believe I am normal?" I asked smugly.
"Fair point."
Laura was slowly recomposing herself and Meg started, "If I am not mistaken Big Dick over here is the only one who hasn't changed his appearance this evening."
At this Laura suddenly became more awake, "You have something in mind, don't you?"
"I do and it's crazy kinky, so I am a bit unsure. Richard, read my mind for this one and you decide whether you want to do it or not."
The first thing I "heard" was the words "two cocks". "Interesting," I began, "I have to admit I never tried, but it shouldn't be too difficult."
"What?" wanted to know Laura, "What is it?"
"I think you will be pleased," I answered. I stood up in front of the girls and from my pelvis a second cock started to grow. Slowly it expanded until it had reached the same dimensions of the first one.
The girls' looks but mainly Laura's were priceless. "I didn't know I would find this so hot but it is," said Laura.
"Before you start cumming all over my carpet, Laura, there is one further change I want to make."
"What is it?" I asked.
"It's a big one. One even I feel ashamed in uttering but you can read my mind so we can surprise Watermelons."
"What did you call me, shrimp?"
"You know it's true," was Meg's half serious rebuttal.
"Richard, can you hear me?" she was communicating with her mind.
"Of course, Meg."
"Ok now. Maybe one of you might have wondered why I have brought you in this huge room. It's because I wanted both of you but mainly you to be utterly huge. I have always fantasised about huge guys even to an impossible extent. This room's roof is fifteen feet high. I want you to grow until you reach a height of ten feet. Plus, one of your cock must grow accordingly, while the other until it's twice the length and girth of the first." She than asked me aloud, "Is it too weird?"
"What was it, Rick? What can be weirder than two dicks?" asked an excited Laura.
"She wants me to be massive, with some rules attached to it and mainly them," I replied flexing my pelvis muscles making my dicks bounce.
"How tall?" again asked Laura.