What makes my friend very horny in his birth chart?

He's male, young, and probably not getting any.
That's all that it takes.
You don't need his birthchart to tell that.
He's in the sexual prime of his life.

Revisit him in 2080 ... he won't be so horny.

Astrologically his venus mars and ASC Taurus

Been there is both right and wrong

In some ways true but certain signs ARE more greedy , dishonest, materialistic, sexual, sensual etc