It can be great for breaking the ice or for those new to sex with a female (men or women). Over all though, it's mostly a novelty. You can use it as a quick foreplay or laugh in a relationship that you've already begun having sex.
Those who are ready to experiment (womanxwoman) (virganxwoman) or have sex with a woman for the first time it can be fun as long as you're open to everything.
Those who are taking the first step towards sex with a new woman in general, this can break the ice.

If you're not open to everything, like butt play or foot play.. I don't suggest. You might end up sucking foot or butt. Also.. pinching mouth is kind of weird. less