The answer to this question depends on the age of the siblings and the cultural context.
For younger siblings:
- It is common for young children to show affection through physical touch, including kissing.
- They may not fully understand the social implications of kissing on the lips and may simply be imitating what they see adults doing.
- Parents should teach their children about appropriate physical boundaries as they grow older.
For older siblings:
- It is generally considered inappropriate for siblings to kiss on the lips, especially as they reach adolescence and adulthood.
- This type of behavior can be seen as a boundary violation and can be uncomfortable or even disturbing for the other sibling.
- It is important to remember that siblings are not romantic partners and should maintain appropriate physical distance.
Cultural differences:
- Cultural norms and expectations can vary significantly regarding physical affection between siblings.
- Some cultures may be more accepting of lip kissing between siblings, while others may consider it taboo.
It is important to note that:
- Any physical contact between siblings should be consensual and respectful.
- If one sibling feels uncomfortable with a particular type of physical affection, the other sibling should respect their boundaries.
Overall, while lip kissing between young children may be acceptable in some contexts, it is generally considered inappropriate for older siblings.