Question

I live in apartment by myself in  missouri  and there's people behind me and beside me and maybe they're Shades up as I do.  I  wanted  to know if I  could   perform the act  of  masturbate with my blinds open in  my current  home  state  of Missouri?

criminal defense lawyer, R. Christopher Simons Answer

This question made me curious enough to dig up the books and do some research. I would say what you described violates RMO 566.093:
“A person commits the offense of sexual misconduct in the first degree if such person:
(1) Exposes his or her genitals under circumstances in which he or she knows that his or her conduct is likely to cause affront or alarm;
(2) Has sexual contact in the presence of a third person or persons under circumstances in which he or she knows that such conduct is likely to cause affront or alarm;”

This is an A or B misdemeanor depending on the circumstances. If a child sees, it's a felony under 566.083. I dug a little further and this law applies even inside your own home if people can see you from outside.

I would say keep your blinds closed.