When I was a PhD student at the University of Queensland, instead of staying at the more usual student accommodation, I opted to find a quieter share house away from the throng to assist my study. Without much looking, I found a place with a recently divorced bloke called John. He worked a lot and was rarely there. He was in his fifties and he had a part time fuck buddy named Yvonne. She too was on her mid-50s and was a BBW with big tits that certainly had some sag in them. Yvonne would stay over at somewhat random intervals, sometimes for only one night, sometimes for longer. Sue Lin was my girlfriend at the time - a Eurasian girl with Malaysian roots studying microbiology. She was slim with relatively small breasts but a nice bum and lovely blemish free milky white skin. I was only her second sex partner and while shy and somewhat unadventurous initially, overtime she had demonstrated a willingness to explore sexually, and I had made a habit out of fucking her bum while she worked a vibrator into her pussy.
She had taken to shaving her pussy. Sue Lin would also stay over, generally most weekends. Sue Lin got to know Yvonne reasonably well, they certainly weren't close which was not surprising given the near 30 year age gap, but they were relaxed in each other's company. For a little while though, Sue Lin had told me that Yvonne was being a bit "strange" around her and she asked me if she had been the same around me. I honestly answered that she seemed the same to me, before I prodded Sue Lin to explain what she meant. She had said, that when no one was around Yvonne would often lead their conversation to sex and would ask her about the things that she had done and how often; and would also tell her how she couldn't stop masturbating because all she would think of was sex. She also told Sue Lin that John was a good fuck but she needed a lot more. Initially Sue Lin said that she thought Yvonne was after sex with me, but I reassured her that I had never had such conversations with Yvonne and never thought she fancied me at all.
It had been a couple of weeks since that particular conversation, and Sue Lin had not raised it again. I was scheduled to go interstate to a conference and Sue Lin had asked to stay at my place in my absence as it was closer to a party that she wanted to go to, and we both knew that John would be away.
I was at my conference when I got a text message from Sue Lin, "Yvonne is here and staying the night too, did you know this?"
I responded that I hadn't and didn't really think of it again until I was walking out of the last session of the conference a few hours later when I received another text message, "Been having drinks with Yvonne... Feel pretty tipsy...... And horny...... Wish you were here to fuck me."
My dick twitched at that thought and before I could reply to the message, Sue Lin had sent another one asking me to ring her as soon as I could. I obliged and I was greeted by a more than tipsy young girlfriend and I could also hear Yvonne in the background as she cooked dinner for both of them. We chatted briefly and Sue Lin said what a fun time she had been having relaxing and drinking Mojitos with Yvonne. She said that she didn't feel like going out now and would just stay at home with Yvonne. I was surprised when Sue Lin blurted out that she was going to hand over the phone to Yvonne.
Yvonne had clearly had a few too, but she didn't sound as drunk as Sue Lin. The conversation was certainly straight to the point as Yvonne made it clear that I was lucky to have such a hot young girlfriend before she added that she bet she gets horny after a couple drinks. My response was noncommittal, but it left room for only one summation.
"I think I speak for Sue Lin when I say that she wishes you were here to fuck her pussy and ass," Yvonne said directly before adding.
"Sorry if silly old Yvonne has shocked you, I'm just being a bit naughty and will make sure Sue Lin stays at home and doesn't go out roaming for cock."
I was somewhat speechless on the phone before Yvonne said she had to get back to the dinner on the stove. She handed back the phone to Sue Lin. Sue Lin apologised for what Yvonne had said, but there was no sincerity in the apology and I heard Yvonne in the background chiding Sue Lin that what she had said was 100% the truth. We finally ended our conversation as Sue Lin said dinner was ready.
About 10 minutes later I got a message from Sue Lin saying that she was as horny as fuck. All this talk had got me horny as well, but I had a quick shower in readiness to meet a couple of other conference delegates for dinner. When I got out of the shower and had dried myself, the mobile phone buzzed again as another text message from Sue Lin arrived. When I opened it I was a little bit surprised.
It read, "This is Yvonne. I have commandeered Sue Lin's phone for a little while. Sue Lin asks that you stay in your hotel room."
Sheepishly I agreed and almost instantly the first picture message came through simply labelled "Your hot girlfriend" and it showed Sue Lin stretched out languidly on the couch with an obvious twinkle in her eye.
The next picture came through quickly and was almost instantly followed by another. The first was unlabelled and Sue Lin was sitting on the edge of the couch with her legs together, elbows on her knees and her hands underneath her chin β a classic innocent pose. The second was labelled, "I can see your girlfriend's black lacy panties that you bought her". The pose was the same similar to the previous one, but this time her legs were open sufficiently so you could see the panties that Yvonne had accurately described. It looked like Sue Lin had her favourite lingerie on under her clothes. Another photo soon arrived, this time with her legs spread wide and a caption "I think I see a wet patch!"
My cock was now absolutely rock hard and I was stunned to think that my girlfriend was letting this much older woman take risquΓ© pictures to send to me. Overall though, the lust of the circumstance overcame everything else. There was a short pause before the next photo came through. It was a close-up labelled "Peek-a-Bo" and Yvonne had snapped a photo of her finger pulling Sue Lin's panties to one side and exposing her cunt. A series of about six pictures than arrived, Sue Lin was now just in her underwear and in each one, her hand was down the front of her panties. In two of them you could see her whole body and she stared straight into the lens as she mischievously sucked her own fingers. The others were close ups of her busy hand down her panties. In the midst of this, my colleagues rang wanting to know where I was and whether I would be making it to the restaurant. I informed them that I would not be able to as something had come up. Little did they know that that something was my cock.
After the last series of pictures, a text message came from Yvonne telling me that Sue Lin wanted to see how hard my cock was, and she added that she did as well. I took a close up picture of my burgeoning cock with pre-cum, virtually bubbling from the big purple head. A response came back almost instantly, a simple β "Fuck Yes.", and was quickly followed up with another message that said, "Time for me to get serious and really defile your gf."