Is it normal to like the taste of my own semen?

Sometimes, after me and my girlfriend have sex I put an eleastic band around the condom we`ve used, so I can save it for later to drink some of it. I`ve had this quirk since my early teens, when back then I would cum into cups just so I could drink it. Now that I live on my own I find myself doing this more and more, I`m scared to tell my friends, only my best friend knows and I refer to it as `like a baby drinking breast milk`. Even when my girlfriend gives me a blowjob I`ll always make her kiss me, so I can taste myself, it`s the only way I get satisfation. Is this normal?