[quote=Rin]
Um, well, um......Also I really like the SonoHana OVA because Reo and Mai are really really cute and they were my favourite couple from the VNs and okay it's basically just porn but it's really nice pretty adorable well done porn so um yeah ahahah. >.<
[/quote]

That's a lot of visual novels in a nutshell. Really nice, pretty adorable, well done porn. I mean, Princess Waltz plays out like an actual anime until it gets to the end and the porn happens. And Kira Kira is just K-On but with a cross-dressing guy on bass. Visual Novels are often novels that just happen to have sex in them. 

Well, except for the stuff that is porn first, story later or stuff like the Infinity series which is just a straight visual novel without the porn stuff. Speaking of, Ever17 is amazing.