no strings attached
Without conditions or obligations; without a catch.
For a friend I’ll help out for free, no strings attached.
adj
Connected; joined.
Fond of (used with to).
I'm very attached to my pets.
Included as an attachment with a communication (especially an email or other electronic communication).
Please see the attached file in my previous email.
In a romantic or sexual relationship.
As far as I know, he isn't attached, so I'm going to invite him out on a date.
I'm not ready to get attached, as I want to continue sleeping around.
Broadly joined to a stem or stipe, but not decurrent.
In this group of mushrooms, the attachment of the gills to the stipe ranges from attached to almost decurrent.