Josuke spots the terrible and violent villain Angelo's Stand, and tells Jotaro about that incident. Jotaro figures it's a Stand that can somehow enter people, so he warns Josuke to not eat or drink anything until he can get to him. Right when he's told that, Josuke witnesses the Stand go into his mother, and then does the unthinkable.
By the way, that scar on your lip...
بالمناسبة، تِلك النّدبة في شفتِك
Ach übrigens,
die Narbe an deiner Lippe.
Por cierto, la cicatriz en tu labio…
Por cierto, la cicatriz en tu labio…
Mais au fait,
cette cicatrice sur ta lèvre,
Piuttosto, quel segno che hai sul labbro...
Por falar nisso, o corte 
nos seus lábios...