I LOVE fucking plastic bottles filled with very warm water. They are BEST discrete anal toys. When empty, they are TSA approved and do not draw any attention. They come in a million shapes and sizes and are fun to imagine in your hole when you a sexy shaped bottle while you out in public. My cock swells when I see one that I would love to fuck but can't because of the people around me. Sometimes, I'll find a way to take that bottle home with me and fuck it later!