No strings attached
Meaning: If there are no strings attached to an offer or arrangement, there is nothing that is unpleasant that you have to accept.
Example: I'll drive you home - no strings attached. We are giving away free t-shirts, no strings attached. He said he would finish the work for free, no strings attached.
Example: I'll drive you home - no strings attached. We are giving away free t-shirts, no strings attached. He said he would finish the work for free, no strings attached.