Without more context, it's difficult to determine exactly who Jocasta is in 'Jocasta Kiss Me First'. She could be a fictional character created for a story, perhaps a protagonist with her own motives and desires.
I'm not sure which specific 'froggy first kiss story' you mean. There could be many fictional or even real - life stories about a frog's first kiss. It could be a children's story where a frog has an unexpected encounter and its first kiss might be with another frog or some other friendly creature in a magical pond setting.
The 'kiss me first novel' might be centered around a love story. It could tell the tale of two characters who have an instant attraction, signified by the 'kiss me first' idea. This could lead to a series of events where they get to know each other better, face challenges in their relationship, and ultimately either come together or part ways. It may also explore themes like self - discovery within the context of a new relationship.
I'm not entirely sure what specific 'first kiss at 18 stories' you're referring to. It could be personal anecdotes of different people's first kisses at the age of 18. Maybe it's a collection of tales where people share their experiences of that special moment when they were 18.