How do i tell someone....

Hey guys, I didnt know where to post this so heres my question, I have played with a few guys before so im courius and dont know how to tell my current gf that i have blown a guy or two. Any help would be helpfull. oh she is/ was in a relationship with a chick once for two yrs as well.
 
How do you tell someone you want to bring another cock into the relationship every once in a while? Not sure how my gf would take it.
 
Top