Back in the 80's I was on my OE and joined a camping tour company as tour guide doing trips around Europe. The age group was 18-30's. On one 3 week trip (my most memorable) the ratio of girls to guys was a majority of girls. One slim brunette Aussie girl got hot on day two and we shared a tent together. Her bestie was a blonde girl who was just as hot. As the trip progressed I slept with the brunette every night. We would stay in hotels once a week for two nights. As the ratio was mainly girls the blonde got the short straw at one hotel stop and had to share a room with a guy who was in her words a f....... weirdo. She begged to stay in our room for the next two nights. I gladly agreed. At this stage I'd never shared with two girls. While I fucked the brunette every night the blonde would watch us and masturbate but didn't join in. One morning the brunette got up to shower so I spooned up behind the blonde and caressed her boobs and rubbed her slit through her panties. It didn't take long for her to get very horny and allowed me to carry on. I pulled her panties aside and slipped my cock in slowly. She started grinding against me. As we were getting carried away the brunette emerged from the bathroom and saw us going at it. She said hmmmm I wondered how long it'd take you two to play. The brunette already naked slipped in to bed on the other side of the blonde. If you're going to fuck I want to see you both naked as she slid blondies t shirt and panties off. I put the blonde in the doggie position and slipped in. I asked the brunette if she'd like to make a sandwich to which she gladly agreed. With both of them in the doggie position with the blonde on the bottom I took turns in fucking them both. Having two wet slippery pussies in front of me I was in heaven. As I neared orgasm I pulled out and told them to turn round. I shot my load in both their mouths and they swallowed it all. We spent many more nights as a threesome. I even got them to take turns underneath licking each others pussies and sucking my balls. The trip ended back in London all too soon. Apart from the normal post tour get together I never saw them again.