Amy0Pete

A modern girl with an amazing monogamous partner (Pete) who is devoted to her and likewise she is to him. He suggested (& she accepted) her having an open relationship status sexually, enabling her to have discreet NSA sex with better-endowed men.

A modern guy who doesn't believe in the constraints of expectations forced upon us. Yet, is totally monogamous with his beautiful partner (Amy). He is comfortable acknowledging his small penis and accepts that size does matter to her. That is, for many males, the most awkward thing to accept. The facts are that when he made the suggestion and they discussed it, there were other factors. Her libido is much stronger than his. If he had to choose just one word to describe the effort needed, he would say "Exhausting."
*Small Update*
One half of a modern married socially monogamous couple who are in an asymmetric open relationship.
He sexually/completely monogamous, while she can & does embrace her sociosexuality with other better endowed men.