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Ever since my stupid friend Dale showed me those A-B Pills we've been having private A-B nights where I continued to be his fuck bunny, I might have been starting to get addicted to the feeling. I had gone from someone who didn't believe in the pills to a frequent user. This all was starting to become a problem admittedly because my girlfriend Alice was starting to grow skeptical, the statement that I was just hanging out with Dale must have sounded like a scapegoat to her no matter how much Dale corroborated that I was at his, just playing a different kind of role. Admittedly it can probably be seen as cheating but when cheating feels so good how could I stop.

"Babe I need you to explain what you are doing every Friday night, we used to spend so much time together and now you are gone most of the weekend" Alice stated firmly. The air hung silent as I was put on the spot, struggling to think of the right words. She was seriously concerned our relationship was in jeopardy, but I love her above all else. I sighed, deciding to come clean.

"Me and Dale have been using party drugs in private" I stated, Alice looking at me confused as I continued "they aren't the typical recreational type, they are a new kind of pill similar to those X-Change pills" I added, I could see her look of confusion shifting as she almost started laughing.

"Babe if you wanted to be a girl for a little while every week I wouldn't stop you" she giggled "does Dale have women's clothes at his place? Why were you hiding this stuff from me?" she asked as I realized something more I needed to explain.

"Well they are a unique variant of X-Change pills called A-B pills, they turn one person into an Alpha and the other into a Beta girl who is changed to fit the Alpha's preferences" I explained as Alice smiled before bursting into a giggle.

"Oh you wanted to be the manly one and have sex with no repercussions or something?" she laughed seeming to be find that I had admitted to having sex with my friend. I was silently thankful she assumed I was the Alpha. "So I guess you better show me your alpha side" she grinned "do you have any of those pills now?" she asks, I thought about it for a moment before nodding.

"Certain babe, I have a pack of them, want to try them now?" I asked with a smile, she wanted a buffer version of me to indulge her and who was I to decline. We moved to the bedroom as I went and grabbed the pills and the glasses of water. We took the pills while facing each other on bed, something in the pit of my stomach told me something bad was going to happen.

I noticed right away Alice was starting to gain muscle mass, her body becoming more muscular as I realised after all my 'Beta behaviour' with Dale. I felt myself shrinking similar to how I was used to. My chest becoming soft as breasts started to develop, I heard Alice moaning.

"Oh Honey, I didn't know you were so into girls like this…" She said as her voice became progressively more deep, in that moment I was sure the realisation set in on her end too. "Oh I didn't realise I was the alpha of us too, I've never thought about the kind of girl I'd be into" she said as she dwarfed me in size. I could feel my clothes adjusting, my penis shrinking away as long blue hair fell past my shoulders, I felt something cold resting on the top of my chest as my hand moved to investigate, my hand brushing my huge breasts, they were even bigger than with Dale, I looked down and saw a black and white pattern before hearing a manly laugh.

"Oh I never thought about how lovely cowgirls are but this new dick of mine is already excited" my now male girlfriend laughed. "Come here my little Beta Bovine" he said as he pulled me into his lap. I was blushing bright red, especially when I realized I could hear a cowbell jingling. He started things of slow with a kiss, I couldn't deny how nice it felt. Next he teased me by licking my ear he then whispered "I'll milk you if you milk me" he teased gripping my heavy breast a cold chill running through my body as I realised that I lactated. The sound of a zipper behind me was music to my ears.

He didn't even loosen his grip as he shifted my panties aside with his free hand as he pressed his dick to my pussy, I let out a long gasp as I felt it enter me.

"Honey, I'm beginning to think that you might not have been the Alpha with Dale" she teased as she bent me forward and started thrusting her member into my pussy, I was squealing out like a bitch in heat as she firmly gripped my huge breasts from behind, kneading and teasing my breasts I could almost feel a 'moo' spilling from my lips. As he groped my breasts the tiny bra popped off as I felt my huge leaking breasts soaking the bed sheets beneath me as I felt his long hard shaft unload a flurry of pure lust into my pussy. I whined like a lust sow as he kept pounding me.

After a few more rounds of manic sex the pair of us fell asleep. I won't say it felt bad to have my girlfriend's semen sloshing around in me was I lay on the sheets I soaked with my own milk but for the person I love to treat me like her personal Beta bitch felt even better than being Dale's Fuckbunny, but I have to admit I am open to both.

We woke up the following morning, I saw Alice was back to normal "Good morning Moolly" she said with a teasing giggle as she served me breakfast, I was back to normal but I guess my new pet name is 'Moolly' given what kind of Beta I was to her. I explained everything to Alice, that I had been Dale's fuckbunny for months and she joked that it probably made me genetically more of a Beta. She then explained that she would be interested in doing that again and fell silent for a little too long.

"I wish I could be everyone's Beta bitch forever" I said blushing as I ate my breakfast, she pinched my cheek and giggled.

"Maybe we should get you some permanent X-Change pills then" she smiles, giving me a kiss on the cheek as she goes to get ready for the morning ahead. I sat in bed thinking what life would be like if I could be a Beta Bitch every night…