Mutual With a Baggy

First of all I would like to say I'm not gay. My friend Dan and I have been masturbating in the presence of each other for almost two years. Occasionally, we'd sleep together in the same bed at my house, when he sleeps over. We were in the computer room doing the usual masturbation, with our dicks out, but I decided to spice the night up a bit. I asked him if he wanted to me to do it for him as a change. For some reason he was hesitant, but after a while he agreed to allow me as long as I used something to cover my hands, because he thought it was gay to do it bare. So I got a baggie and stroked him so hard. He didn't cum, so he got really frustrated and he asked if he could just masturbate himself. I agreed and to my surprise after a 10 minutes of masturbation he stood up and cummed on my shirt. I didn't know what to do so I masturbated and cummed on him. It was great and it's just been great since then. We've had dry sex (humping), fingered each other, but to my surprise we haven't mutual masturbated each other since.