Is it normal to just let strangers have sex with you outside

Hi there all.Iv read enough of these sites and web pages to know there must be a few woman out there that have done this.one night me and my by were all horny sexed up my bf said lets do it outside it first a said no but that was it thought was in my head so we put some clothes on and went outside. We walked about for a bit to see if there was any good places but the town was chock a block suppose it was wknd. After a bit we saw this wee place not right out of sight but not in plain view. My bf started kissing me and playing with me. As I only put a skirt on no nickers. Couple people walked past and that just got me all turned on. My bf friend was playing with me as I took him out and played with him. Couple more ppl went past still not a blink of a eye thought we had found the perfect spot. And it was only 5min from our house. Well next thing a know my bf turns me round and bends me over using a wall to keep me up as my bf was taking me from behind. I didn't see two males walk up behind us but my bf did. And asked if they would like a shot and i still didn't even know they were there. While am still bent over. He let the 2guys take me from behind wasn't until he walked round to stand in front of me he said in a calm way it ok just go with It. Was going to go crazy but felt to good so went along with it well they all came in me. And then my bf invited them back with us. They said they couldn't cause they had to wait on a mate that has just got back from a work deal abroad. Part of me was relived but part of me was disappointed. But just as me and bf walking away we hear. Here mate our other mate just turned up could he join in too. My bf said yes we get back home and all of them had sex with me for hrs and hrs. And over and over. And that was first time I had did anything like this I did DP too. I've never been pleasured like that four men all just wanting to pleasure u that has bee the only time anything like that had happened. And in that one night I slept with strangers for the first time and had DP for the first time. And now I feel like I want to do it all the time but would like to try women next time. So my bf gets a shot or even moe men. But has anything like that happened to any of you's x