Tamer?? Well they both are 5th year university students so they are older than the teenagers Carlos started with CJ and company. So twenty-three or -four or -five gives them some life perspective. Riley seems very inexperienced sexually and has the bigger adjustment as he has put it off for several years.
I miss the background color that Carlos used to provide where he would describe in some detail, the food, their reactions to it and the surroundings etc.
Do Not Go Gentle Into That Good Night
by Dylan Thomas
Is an example of didactic poetry and there are hundreds of other examples that are familiar to most well read people. Here is a link that provides some:
http://www.thehypertexts.com/Best Didactic Poems.htm