so I opened my vita, suprised that I got a message cuz I just created this account a month ago and I haven't sent any friend requests to anybody at all. it seems psn accounts also gets spams like these.
lol reminds me of the time when I was in the army, we had a platoon mate who liked to pretend to be female and sex text people. So while that poor guy was flirting, there was a whole platoon of guys behind the "girl" laughing our heads off.
I think it might be a bot (simple virus). Only I strongly recommend that if in such cases you will receive links - do not follow them. There are a lot of scammers on the network, many phishing sites (you can read about this) that steal your personal data.
Ok, Now is the time to get serious; All you have to do is ignore them and report about them. Do not try to answer them, or it will inspire them.