No constitutional right to consensual BDSM acts?

[Neo-Scholastic]

Many things are immoral that do not rise to a level justifying restrictions on personal liberty. Whether this applies to particular sexual conduct I cannot say not knowing much S&M except from reading the Story of O and Venus in Furs. Also in absence of detailed knowledge of the case, there may have been other considerations, like if there was a monetary exchange, permanent scarring and/or injury, etc.