what does the males testes look like after it has been drained of semen, and are they large when full?

Question

we had sex two days prior, but I sensed something wasn't right when he came to my room. He was hard, but semi-erect and his testicles were very tight, not loose and hangin' as usual. He states that he didn't masturbate, nor did he have sex with anyone. I need an answer based on scientific facts or medical expertise. Oh, by the way he is 42, soon to be 43 years old.

Answer 1

They don't get drained. The way they hang is due to the temperature or the level of excitement. When it is cold, they tighten up and when they are excited they tighten.

Answer 2

No they always stay the same size. When it gets cold they get tight.