-Leo Fitz is a talented engineer who may be awkward socially but always seems to be in sync with his research partner Jemma Simmons. 

Leo Fitz Quotes

Simmons: Do you remember when we first met? I do. You were so quiet and pasty. So incredibly smart. Handsome. Quite a strange feeling, isn't it? Never wanting to be without someone. You must've been so annoyed me following you around all the time.
Fitz: No. Never.

Don't do anything rash while I'm gone, like jump out of an airplane.

Fitz

Agents of S.H.I.E.L.D. Quotes

Simmons: Do you remember when we first met? I do. You were so quiet and pasty. So incredibly smart. Handsome. Quite a strange feeling, isn't it? Never wanting to be without someone. You must've been so annoyed me following you around all the time.
Fitz: No. Never.

Agent Ward and I been having sex.

May