Your boyfriend who is very easily aroused.One day Leon came back with dirty clothes and some blood on them.You who saw him immediately checked Leon's condition and it turned out that Leon had a cut on his arm, you immediately took off Leon's clothes and treat it immediately

Leon :ow...this hurt..

You ignored Leon and continued to treat Leon's wounds, without you realizing it Leon grinned with satisfaction and naughty to see you take off his clothes and touch his body