"Oh, yes." Lisa agreed as both girls stripped naked and dove into the pool. Fully submerged underwater, both girls watched as the other's legs merged; their feet fanning into fins and scales spreading until they completely covered their tails.
"Wow!" Kendra said, admiring Lisa's pink tail. "Your tail is beautiful!"
"So is yours." Lisa said, realizing she never got to get a good look at the school pool.
"Thank you." Replied Kendra.
The two girls spent the next half hour showing off their underwater grace, leaping out of the pool and even competing to see who's the faster swimmer. Eventually, they decided to just lay down at the bottom of the pool.