[Lionsan]

When you have the flat to yourself, put on some music in the lounge and practice a strip tease routine. Imagine your flatmates are the future audiance, sitting in the armchairs/sofa. Once naked finish with some edging using your dildo on the lounge floor for their imagined viewing pleasure.

Record your strip tease rountine on your phone and watch it back so you can get an idea how you will improve the strip routine next time you practice your dance.

Keep practicing until you are confident with doing the routine.
Imagine one evening having one too many drinks and performing your practiced strip tease routine.