I posted this in /r/askmen, but didn't get many quality responses. I wonder if guys here might offer better advice.

On a whim I told my doc I wanted to try Viagra recreationally. She gave me a script and says I should just take half a pill. I go to the pharmacist who says each pill is $50.

I'm digging the monogamy thing right now, but my current girl struggles to keep up with my appetite as it is. She's says down for the "occasional" extra session, but not down for another woman.

So guys, extra sex with the same woman for $25. Thoughts? Tips? Experiences?