Mark stepped out of the shower, still admiring his new body. He loved the new hair covering his body. Even after shooting his load right before showering, Mark felt his bigger cock starting to stir again as he toweled himself off. Finished, he balled the towel and left in the bathroom before walking into the master bedroom. There, he found Tom and Jeff cuddled together under a sheet. Mark could see from the outlines in the sheet that neither man had gotten off while he was showering, and both were very erect.
“Hey pup! Climb into bed with us, we have some stuff to go over now that you have our ‘gift’” Tom said with a wink. Mark hopped onto the bed and crawled to his bosses.
“You’re a lucky pup Mark” Jeff said. “After Tom and I got the shepherd in us, the guy told us we weren’t limited to one breed. All we had to do was ingest the sperm of other men who could shift. After, we would be able to transform into that breed as well. Unfortunately the guy in San Francisco was only interested in the shepherd, so we only added one breed to our repertoire that night.”
While Jeff was relaying the information, Tom had gotten up and left the bed. It was at this point that Tom returned, hard as ever and with a drop of pre-cum just starting to leak out. Mark couldn’t help himself, he leaned in, stuck his tongue out, and licked the pre right off of Tom’s cock.
“Whoa pup, slow down” Tom chuckled. “If we’re gonna get some more dog in ya, I need ta keep some juice in my balls” Tom ran his hand through Mark’s hair, then pulled him in for a quick kiss. With a smile, Mark said “I could always get my dog juice from Jazz, couldn’t I? Besides, I know how quick these things fill up” Mark said, taking Tom’s plump sack in hand. Tom moaned lightly, and Jeff laughed.
“Jeez you two, knock that off or I’m going to cum before either of you can get a mouth on it. Now, to the point. We have quite a few breeds in us Mark, and they’re yours for the taking. We just chose the shepherd first because the initial transformation always changes your human form. We knew what the shepherd did for us, and wanted to see how it would sexy you up.”
Tom, who had resumed his position cuddled up with Jeff and arm around his shoulder said, “It sure did. Though, mighta been interestin’ to see what the Dane woulda done to ya pup”
“Or, if you’d like, we can stick with the shepherds for now. In that case, after the pounding you gave my furry ass last night, I wouldn’t mind having a turn at yours while Titus works me over” Jeff said.
“What breeds do you guys have swimming around in those balls of yours?” Mark asked. He liked the idea of Jazz knotting him up, but also wanted to see what his options were.
“Well, we both have the shepherds. We have Labradors too, I’m a yellow and Tom is a big black one. We’ve got huskies, pit bulls, and Tom has the Great Dane in him.” Jeff explained.
“You don’t have Great Dane in you?” Mark asked Jeff.
“Nope, I figured I’d pass on the Dane and leave it to this big stud.” Jeff said, kissing Tom on the cheek. “Unfortunately, that means no sex between us when Tom is the Dane.”
“Yeah, but I’m a champion stud. Jeff here had my Dane juice tested. I’ve sired quite a few litters!” Tom said proudly.
“But, you’re gay.” Mark questioned.
“Oh, that’s fer sure pup. But a bitch in heat is a whole differnt ball game. They’re almost as sexy as Jazz’s furry butt” Tom said, returning the kiss to his husband. “Almost. Anyway, we both got bulldog too. I got British and Jeff here has French. You should see the guys at the dog park line up when I bring Jazz the Frenchie!”
“Yeah, I’m pretty much a dude magnet. Titus the British Bulldog brings quite a few boys to the yard too” Jeff said smiling.
“Lessee, what else is there? Jeff here has Corgi, Dachshund, and Chihuahua in him too.” Tom said.
“Chihuahua?! Really?!” Mark said.
“Yeah. The opportunity came up and I figured why not?” Jeff said with a smile. “Don’t know it til you try it. I think of all the breeds I get the horniest as the Chihuahua. Shame Tom here won’t go for it. I have to say though, I get a kick out of the looks this big muscled brut gets carrying around a five pound yipper.”
“Hardee har har. Yer lucky you got champion swimmers in those Chihuahua nuts, otherwise I’d leave you home.” Tom said with a chuckle.
“Haha, well, there is that too. I have sired a few lines of my own puppies.” Jeff said.
“So fellas, I know this is a lot to take in, but my nuts are bout to explode if I don’t unload. You made a decision there pup?” Tom said, running a finger up his stiff and leaking cock.
“Well...” Mark said. “I think I..."