Is it boundary crossing when a single parent wants their adult child to share a bed with them when they visit, even when a spare bed is available?

During the time that your parents were together, did that mean that you never shared a bed with one of your parents, as the bed would be too full? Especially as an adult, do you think that it is boundary crossing when a single parent wants their child to sleep in the same bed with them when they come to visit?

Is it boundary crossing when a single parent wants their adult child to share a bed with them when they visit, even when a spare bed is available?
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