It's quite obvious they're both very inexperienced.. he in particular doesn't quite seem to know what he's doing. But it works out pretty well
transcript (not everything is easy to understand..):
03:49 "shall I already put it on?" (the condom) - "yes!"
05:25 "put it into my hand" (apparently he doesn't find the entrance..)
05:50 "uuuh - this is where we must go in.." (is this his first time?)
06:01 "it doesn't want to..." - "you're too high"
06:19 "doesn't want to"
07:02 very hard to understand but she says something along the lines of "I don't mind that much, just need it right here" (on her clit supposedly)
07:47 finally succeeding to enter..
08:23 "this is amazing"
08:47 "all good?" - "yes"
09:14 "you want it faster? I can go faster.." - "what? (laughing) no, all good"
09:24 "what is it?" - "just slipped out.."
10:23 she: "oh this is so good.." (his response is a word salad but then she replies:) "ok no compliments.. I won't say it again"
11:19 "shh.. or the neighbours might come and complain" - "shall I stop?" - "no, I didn't say that (laughing)"
14:25 "now where can I get rid of that..?"
. Please try to catch more from your young neighbor
and hear 
you
Well, we all are waiting for the second experience... can you tell your neighbor not to be too long before the next "saturday night fever" ?