Yuri POV
You might think these threesomes with Tae would hurt my relationship with Tiffany, but instead we grew closer. Tiffany was giddy all the time. She had a normal upbringing, if maybe a little conservative because of her religion, so her hookups with a guy not her boyfriend were exciting "break the rules" kind of things for her. From her point of view, yes, she was acting sluttish, but she had her boyfriend's permission so it was okay. For me, it was so exciting to see my girlfriend taken by another guy. I can't explain it, but just thinking about it made me dizzy with excitement. Yes, it was gut wrenching, but so thrilling.
I didn't like the way Tae and Tiffany acted around each other (outside the bedroom). Their actions were a little more intimate, touchy-feely than before - not like boyfriend/girlfriend, but more than platonic friends. My friends noticed it, and some of them even told me I better watch out for Tae because he was making moves on Tiffany.
I tried telling Tiffany my concerns, but talking about it got me excited and hard (despite the anguish), so it always ended up with us having amazing sex. My reaction got Tiffany believing it excited me when she flirted with Tae in front of our friends - which it did - so she started doing it more, delighted by how kinky and demented I was.
To celebrate my birthday, Tiffany threw me a party with about 30 of our friends. She looked amazing. I guess maybe I should describe her. She's a head shorter than me at 5-3, with a petite slim body. She's got pretty hair that goes passed her shoulders, and a girl-next-door pretty face that match her bubbly, happy-go-lucky personality. Her breasts are small (she wears a 32 b cup) but perky, and she's got amazing long legs with slim pretty feet. See danced a lot in high school and college, and is kind of tom-boyish, and prefers jeans and flats over skirts and heels.
Tiffany hates wearing pantyhose, feeling they're too constricting. So it surprised me that not only did she wear a dress to my birthday party (a little black number), but also sheer nude pantyhose, and spiky high heels. I didn't know where she got the high heels, I didn't know she even owned any. But she looked incredible! The dress was low cut so it showed the soft swell of her bosom (I think she wore a push up bra as her boobs looked bigger than normal), and it end way higher than her knees so it showed off most of her legs. And her legs looked even more amazing than usual in the silky nylons and high heels.
Even though it was my birthday party, Tiffany spent as much time with Tae as with me. I think our friends thought it was because she was tipsy from beer, but given how touchy-feely the two of them had been lately, I'm sure all my friends thought Tiffany was cheating on me with Tae. More than once when the three of us were clustered in a group with other people, Tiffany ignored me completely, her eyes and attention solely on Tae.
One time Tiffany came up to me and whispered into my ear, "Doesn't Tae look so hot tonight?" She giggled seeing the flash of excitement on my face, then walked away.
Around midnight I looked around for Tiffany but couldn't find her anywhere. Tae wasn't around either. They'd been all over each other all night, so I was pretty sure I knew what they were doing. Most of the people were still there so their absence wasn't noticeable, but soon it would be if they didn't show up soon. Just as I was about to have an anxiety attack, they walked in ... together! WTF, couldn't they have at least come in separately?!
Tae said something about going out for a smoke, but Tiffany's hair was disheveled, her cheeks flushed, and her dress creased. In other words, she looked freshly fucked! I could tell, and so could all are friends. Many of my friends looked at me questioningly, wondering why I wasn't taking a slug at Tae. My gut wrenched with jealousy and insecurity, and at the same time my cock was hard as a rock.
