No offence to you, since you claim to be straight.Butttt.... Mutual mesterbation can transform into alot of things, and can also not. From what I gather, you, Plan your meetings for "Mutual Masterbation"you sexually please yourselves together.So... To me that sounds like same sex-attracted experimentation.If the slight urge is there to maybe sexually please eachother, I say why not go for it. Why not see how much fun you and your friend can have together, pleasing eachother.It wouldnt make you gay, if anything, if your are heterosexual it would redefine your identifying with that label. And it would be good experimentation for figuring out your sexuality.Gay straight lesbian bisexual transgender... whatever, you dont just wake up one day and know what you are. It comes with personal experience,knowlage and feelings.Anyway... just my opinion