I love watching a man's cock throb as it spews cum inside another man. When I let a guy fuck me without a condom, as he is cumming, it is so hot to reach down and feel his cock twitch then throb as he deposits his seed deep inside my pussy. Its so hot knowing that he is leaving a living part of himself inside me.
Go ahead....you will not turn back. Pussy will drift t the edges of your life. You will lose all urge for it and finally it will become distasteful. Cock and anus will the centre of your desires. It happens surprisingly fast, almost from the first experience.