I (F24) let my boyfriends best friend penetrate me a few times

So normaly we go to the gym together the 3 of us. But lately my bf has to work sometimes at night, so then me and his best friend go to the gym. But im always super horny after i had a workout , we always go to our house when we are finished we then wait for my bf to come home. I shower everytime directly when i get home and my bf best friend waits in the living room. But a few times ago i was masturbating in the shower and moaned a few times. And he thought something was wrong so opened the door. And saw me masturbating. And naked, i could see he had an instant boner, and it was big! So he said sorry that he rushed in and i said al good al good. Now he already saw me naked so i asked if he wanted to shower to. And if he wanted to join in. So he agreed, as he was undressing himself i bited my lip because i was so horny! He saw it and looked at me as he undid he boxers. And it was 1.5x times the size of. my bf. So we showered together and soaped each other, so i got into my bedroom and he walked in. His dick was dripping precum and i asked if he could hold it any longer. He said no i kinda need to relieve it. So i said nothing layed on bed with my legs open. And then said to him: are you comming? You can penetrate me a few times then just cum on me. So he didn’t hestitate a second walked up to me sticked he pretty big dick in me and did a few strokes. Then he pulled out and i jerked him off til he came. Now i dont know what to tell my bf, and everytime i see his best friend i only think of his cock inside me!