Is it a Knicker fetish with a Kinky Cheap Phone Sex Slut

My boyfriend and I went away with two friends this summer. We shared a villa and it was horny listening to them fucking on the first night. The next day the three of us went off for breakfast, leaving my boyfriend there alone. I came back first as I’d left my purse only to find him with his hand around his cock and his nose in my friends knickers. He was really going for it. I was quite shocked as I didn’t know about his knicker Lovers Fetish. I had spoken to guys whilst having phone sex and I could understand how it could be a turn on.  I don’t know what came over me but I too was smelling them with him whilst I wanked him. They smelled and tasted of her sex, and we both had an amazing orgasm. For the whole two weeks I said I would wash their laundry, and my boyfriend and I shared the soiled knickers, it was so horny!