My wife told me she was scared to death to have sex and to let a man penetrate her pussy before marriage. She told me it was based upon her Catholic schooling through High School and fear of pregnancy. So, when we met I was her first to fuck her.
She did tell me about one guy we have met since who she was going to give her pussy to, but got interrupted and caught and so it never happened until 42 years later when he got to finally fuck her while I was present.
She told me she would often suck a guy off though while she was in High School. She estimates it was 7 or 8 guys total. Her first was during the fall of her Freshman year. She had snuck out of the house and met an "older boy" who she liked and thought was cute. While taking her home he parked along a country road near a creek and they started kissing. She admits she was really turned on and he told her he wanted to fuck her. She told him she wanted to start by sucking his cock and he pulled his pants down and sat in the front seat and she took his cock in her mouth. She said she sucked him until he shot his load into her mouth and then he took her home. From that time on, she offered blowjobs when a guy wanted sex on a date. She told me she always swallowed the guy's load to make him happy so she would not get fucked.
It was definitely to my benefit, my wife is an expert cock sucker and has not ever complained about swallowing my or any other guys' load.