You know you can mute and unfollow people on social media if you don't care for their conversations?
The Bench Press is just a gym exercise where you lay on the bench and lift weights over your chest to work the pectoral muscles. As far as I know "I will Bench Press You" doesn't have any well-known innuendo. It literally means using someone as the weight. People bench press their kids or pets all the time to be cute or funny.
That being said, even if there is any sexual innuendo what gives? If you don't like something - look away. Its not a crime for two consenting adults to flirt and indulge in innuendo.
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